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2987086656 = 26316999157
BaseRepresentation
bin1011001000001011…
…0101001101000000
321201011201201120010
42302002311031000
522104143233111
61212223344520
7134010550311
oct26202651500
97634651503
102987086656
1112a3150464
126b4452140
13387b128c8
14204a04608
15127392aa6
hexb20b5340

2987086656 has 56 divisors (see below), whose sum is σ = 7908848800. Its totient is φ = 995000832.

The previous prime is 2987086649. The next prime is 2987086657. The reversal of 2987086656 is 6566807892.

It is a junction number, because it is equal to n+sod(n) for n = 2987086596 and 2987086605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2987086657) 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, 321630 + ... + 330786.

Almost surely, 22987086656 is an apocalyptic number.

It is an amenable number.

2987086656 is an abundant number, since it is smaller than the sum of its proper divisors (4921762144).

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

2987086656 is a wasteful number, since it uses less digits than its factorization.

2987086656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10871 (or 10861 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 57.

The square root of 2987086656 is about 54654.2464589898. The cubic root of 2987086656 is about 1440.1772312724.

The spelling of 2987086656 in words is "two billion, nine hundred eighty-seven million, eighty-six thousand, six hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 1699 3398 5097 6796 9157 10194 13592 18314 20388 27184 27471 36628 40776 54368 54942 73256 81552 108736 109884 146512 163104 219768 293024 326208 439536 586048 879072 1758144 15557743 31115486 46673229 62230972 93346458 124461944 186692916 248923888 373385832 497847776 746771664 995695552 1493543328 2987086656