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156930020880 = 2435653875087
BaseRepresentation
bin1001001000100111000…
…0100001011000010000
3120000001201112001100120
42102021300201120100
510032343041132010
6200032002550240
714223605111523
oct2221160413020
9500051461316
10156930020880
116060a9a6436
12264b7668380
1311a4c223229
147849cd2bba
1541371c3e70
hex2489c21610

156930020880 has 40 divisors (see below), whose sum is σ = 486483065472. Its totient is φ = 41848005504.

The previous prime is 156930020827. The next prime is 156930020881. The reversal of 156930020880 is 88020039651.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (156930020881) 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, 326937304 + ... + 326937783.

Almost surely, 2156930020880 is an apocalyptic number.

156930020880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156930020880 is an abundant number, since it is smaller than the sum of its proper divisors (329553044592).

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

156930020880 is a wasteful number, since it uses less digits than its factorization.

156930020880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653875103 (or 653875097 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 156930020880 in words is "one hundred fifty-six billion, nine hundred thirty million, twenty thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 653875087 1307750174 1961625261 2615500348 3269375435 3923250522 5231000696 6538750870 7846501044 9808126305 10462001392 13077501740 15693002088 19616252610 26155003480 31386004176 39232505220 52310006960 78465010440 156930020880