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387078132 = 223723200351
BaseRepresentation
bin10111000100100…
…101011111110100
3222222100121101010
4113010211133310
51243043000012
6102224232220
712410052450
oct2704453764
9888317333
10387078132
1118954a591
12a976b670
1362268b1c
143959d660
1523eaec3c
hex171257f4

387078132 has 48 divisors (see below), whose sum is σ = 1077092352. Its totient is φ = 105784800.

The previous prime is 387078119. The next prime is 387078143. The reversal of 387078132 is 231870783.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98244 + ... + 102107.

It is an arithmetic number, because the mean of its divisors is an integer number (22439424).

Almost surely, 2387078132 is an apocalyptic number.

It is an amenable number.

387078132 is an abundant number, since it is smaller than the sum of its proper divisors (690014220).

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

387078132 is a wasteful number, since it uses less digits than its factorization.

387078132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200388 (or 200386 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 387078132 is about 19674.3013090681. The cubic root of 387078132 is about 728.7852016846.

The spelling of 387078132 in words is "three hundred eighty-seven million, seventy-eight thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 200351 400702 601053 801404 1202106 1402457 2404212 2804914 4207371 4608073 5609828 8414742 9216146 13824219 16829484 18432292 27648438 32256511 55296876 64513022 96769533 129026044 193539066 387078132