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215230008704 = 273496737159
BaseRepresentation
bin1100100001110010110…
…1010100110110000000
3202120112202020021210212
43020130231110312000
512011242340234304
6242513022013252
721356412613514
oct3103455246600
9676482207725
10215230008704
1183307802157
1235868117228
13173b06cb449
14a5baa9a144
1558ea56e66e
hex321cb54d80

215230008704 has 64 divisors (see below), whose sum is σ = 430706220000. Its totient is φ = 107132239872.

The previous prime is 215230008647. The next prime is 215230008709. The reversal of 215230008704 is 407800032512.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215230008709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30060677 + ... + 30067835.

Almost surely, 2215230008704 is an apocalyptic number.

It is an amenable number.

215230008704 is an abundant number, since it is smaller than the sum of its proper divisors (215476211296).

215230008704 is an equidigital number, since it uses as much as digits as its factorization.

215230008704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195 (or 8183 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The spelling of 215230008704 in words is "two hundred fifteen billion, two hundred thirty million, eight thousand, seven hundred four".

Divisors: 1 2 4 8 16 32 64 128 349 673 698 1346 1396 2692 2792 5384 5584 7159 10768 11168 14318 21536 22336 28636 43072 44672 57272 86144 114544 229088 234877 458176 469754 916352 939508 1879016 2498491 3758032 4818007 4996982 7516064 9636014 9993964 15032128 19272028 19987928 30064256 38544056 39975856 77088112 79951712 154176224 159903424 308352448 319806848 616704896 1681484443 3362968886 6725937772 13451875544 26903751088 53807502176 107615004352 215230008704