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30182030720 = 275293743951
BaseRepresentation
bin11100000110111111…
…010011110110000000
32212220102211000120122
4130012333103312000
5443303044440340
621510533355412
72115640012442
oct340677236600
985812730518
1030182030720
1111888a73446
125a23a98b68
132acccca39a
1416646b0492
15bb9ad3db5
hex706fd3d80

30182030720 has 128 divisors (see below), whose sum is σ = 76661078400. Its totient is φ = 11341209600.

The previous prime is 30182030719. The next prime is 30182030783. The reversal of 30182030720 is 2703028103.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 30182030720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664745 + ... + 708695.

It is an arithmetic number, because the mean of its divisors is an integer number (598914675).

Almost surely, 230182030720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30182030720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38330539200).

30182030720 is an abundant number, since it is smaller than the sum of its proper divisors (46479047680).

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

30182030720 is a wasteful number, since it uses less digits than its factorization.

30182030720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44036 (or 44024 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 30182030720 its reverse (2703028103), we get a palindrome (32885058823).

The spelling of 30182030720 in words is "thirty billion, one hundred eighty-two million, thirty thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 29 32 37 40 58 64 74 80 116 128 145 148 160 185 232 290 296 320 370 464 580 592 640 740 928 1073 1160 1184 1480 1856 2146 2320 2368 2960 3712 4292 4640 4736 5365 5920 8584 9280 10730 11840 17168 18560 21460 23680 34336 42920 43951 68672 85840 87902 137344 171680 175804 219755 343360 351608 439510 686720 703216 879020 1274579 1406432 1626187 1758040 2549158 2812864 3252374 3516080 5098316 5625728 6372895 6504748 7032160 8130935 10196632 12745790 13009496 14064320 16261870 20393264 25491580 26018992 28128640 32523740 40786528 47159423 50983160 52037984 65047480 81573056 94318846 101966320 104075968 130094960 163146112 188637692 203932640 208151936 235797115 260189920 377275384 407865280 471594230 520379840 754550768 815730560 943188460 1040759680 1509101536 1886376920 3018203072 3772753840 6036406144 7545507680 15091015360 30182030720