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30244030140 = 22351937219379
BaseRepresentation
bin11100001010101011…
…110100011010111100
32220001202110220210110
4130022223310122330
5443414432431030
621521030310020
72120322004662
oct341253643274
986052426713
1030244030140
111190aa6a535
125a407b8310
132b0cac742c
14166ca0cc32
15bc027e1b0
hex70aaf46bc

30244030140 has 144 divisors (see below), whose sum is σ = 91619337600. Its totient is φ = 7433710848.

The previous prime is 30244030133. The next prime is 30244030147. The reversal of 30244030140 is 4103044203.

It is an interprime number because it is at equal distance from previous prime (30244030133) and next prime (30244030147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30244030147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1550971 + ... + 1570349.

It is an arithmetic number, because the mean of its divisors is an integer number (636245400).

Almost surely, 230244030140 is an apocalyptic number.

30244030140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30244030140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45809668800).

30244030140 is an abundant number, since it is smaller than the sum of its proper divisors (61375307460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30244030140 is a wasteful number, since it uses less digits than its factorization.

30244030140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19484 (or 19445 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 30244030140 its reverse (4103044203), we get a palindrome (34347074343).

The spelling of 30244030140 in words is "thirty billion, two hundred forty-four million, thirty thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 19 20 30 37 38 57 60 74 76 95 111 114 148 185 190 222 228 285 370 380 444 555 570 703 740 1110 1140 1369 1406 2109 2220 2738 2812 3515 4107 4218 5476 6845 7030 8214 8436 10545 13690 14060 16428 19379 20535 21090 26011 27380 38758 41070 42180 52022 58137 77516 78033 82140 96895 104044 116274 130055 156066 193790 232548 260110 290685 312132 368201 387580 390165 520220 581370 717023 736402 780330 1104603 1162740 1434046 1472804 1560660 1841005 2151069 2209206 2868092 3585115 3682010 4302138 4418412 5523015 7170230 7364020 8604276 10755345 11046030 13623437 14340460 21510690 22092060 26529851 27246874 40870311 43021380 53059702 54493748 68117185 79589553 81740622 106119404 132649255 136234370 159179106 163481244 204351555 265298510 272468740 318358212 397947765 408703110 504067169 530597020 795895530 817406220 1008134338 1512201507 1591791060 2016268676 2520335845 3024403014 5040671690 6048806028 7561007535 10081343380 15122015070 30244030140