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30220080 = 24351111447
BaseRepresentation
bin111001101000…
…1111100110000
32002212100011020
41303101330300
530214020310
62555415440
7514603122
oct163217460
962770136
1030220080
1116070880
12a154580
136351207
144029212
1529be170
hex1cd1f30

30220080 has 80 divisors (see below), whose sum is σ = 102207744. Its totient is φ = 7325440.

The previous prime is 30220079. The next prime is 30220081. The reversal of 30220080 is 8002203.

It is an interprime number because it is at equal distance from previous prime (30220079) and next prime (30220081).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (30220081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3084 + ... + 8363.

Almost surely, 230220080 is an apocalyptic number.

30220080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30220080 is an abundant number, since it is smaller than the sum of its proper divisors (71987664).

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

30220080 is a wasteful number, since it uses less digits than its factorization.

30220080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474 (or 11468 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 30220080 is about 5497.2793270854. The cubic root of 30220080 is about 311.4812220353.

Adding to 30220080 its reverse (8002203), we get a palindrome (38222283).

The spelling of 30220080 in words is "thirty million, two hundred twenty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 80 88 110 120 132 165 176 220 240 264 330 440 528 660 880 1320 2640 11447 22894 34341 45788 57235 68682 91576 114470 125917 137364 171705 183152 228940 251834 274728 343410 377751 457880 503668 549456 629585 686820 755502 915760 1007336 1259170 1373640 1511004 1888755 2014672 2518340 2747280 3022008 3777510 5036680 6044016 7555020 10073360 15110040 30220080