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6870131872 = 251941275599
BaseRepresentation
bin1100110010111110…
…11110010010100000
3122201210100212012121
412121133132102200
5103032223204442
63053414434024
7332151104662
oct63137362240
918653325177
106870131872
112a0601283a
1213b8962914
138564354b6
144925d2532
152a3214967
hex1997de4a0

6870131872 has 48 divisors (see below), whose sum is σ = 14584752000. Its totient is φ = 3174888960.

The previous prime is 6870131869. The next prime is 6870131881. The reversal of 6870131872 is 2781310786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112872 + ... + 162727.

It is an arithmetic number, because the mean of its divisors is an integer number (303849000).

Almost surely, 26870131872 is an apocalyptic number.

It is an amenable number.

6870131872 is an abundant number, since it is smaller than the sum of its proper divisors (7714620128).

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

6870131872 is a wasteful number, since it uses less digits than its factorization.

6870131872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275669 (or 275661 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 6870131872 is about 82886.2586439996. The cubic root of 6870131872 is about 1901.0273181196.

The spelling of 6870131872 in words is "six billion, eight hundred seventy million, one hundred thirty-one thousand, eight hundred seventy-two".

Divisors: 1 2 4 8 16 19 32 38 41 76 82 152 164 304 328 608 656 779 1312 1558 3116 6232 12464 24928 275599 551198 1102396 2204792 4409584 5236381 8819168 10472762 11299559 20945524 22599118 41891048 45198236 83782096 90396472 167564192 180792944 214691621 361585888 429383242 858766484 1717532968 3435065936 6870131872