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387764056 = 23472110267
BaseRepresentation
bin10111000111001…
…100111101011000
31000000122110021201
4113013030331120
51243231422211
6102251043544
712415640311
oct2707147530
91000573251
10387764056
11189978969
12a9a405b4
13624490b4
14396db608
15240980c1
hex171ccf58

387764056 has 16 divisors (see below), whose sum is σ = 727282440. Its totient is φ = 193822080.

The previous prime is 387764029. The next prime is 387764063. The reversal of 387764056 is 650467783.

It is a super-2 number, since 2×3877640562 = 300721926251142272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 387763997 and 387764015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32635 + ... + 42901.

Almost surely, 2387764056 is an apocalyptic number.

It is an amenable number.

387764056 is a deficient number, since it is larger than the sum of its proper divisors (339518384).

387764056 is a wasteful number, since it uses less digits than its factorization.

387764056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14994 (or 14990 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 387764056 is about 19691.7255719249. The cubic root of 387764056 is about 729.2154303054.

The spelling of 387764056 in words is "three hundred eighty-seven million, seven hundred sixty-four thousand, fifty-six".

Divisors: 1 2 4 8 4721 9442 10267 18884 20534 37768 41068 82136 48470507 96941014 193882028 387764056