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1380587232 = 25331463907
BaseRepresentation
bin101001001001010…
…0001011011100000
310120012211002122110
41102102201123200
510311412242412
6344554435320
746132540443
oct12222413340
93505732573
101380587232
1164933a692
12326432b40
1319004272b
14d14db65a
158130cd3c
hex524a16e0

1380587232 has 48 divisors (see below), whose sum is σ = 3740954112. Its totient is φ = 445349760.

The previous prime is 1380587227. The next prime is 1380587239. The reversal of 1380587232 is 2327850831.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×13805872322 = 3812042210322843648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380587239) 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, 228978 + ... + 234929.

It is an arithmetic number, because the mean of its divisors is an integer number (77936544).

Almost surely, 21380587232 is an apocalyptic number.

1380587232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1380587232 is an abundant number, since it is smaller than the sum of its proper divisors (2360366880).

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

1380587232 is a wasteful number, since it uses less digits than its factorization.

1380587232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463951 (or 463943 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1380587232 is about 37156.2542783850. The cubic root of 1380587232 is about 1113.4941786170.

The spelling of 1380587232 in words is "one billion, three hundred eighty million, five hundred eighty-seven thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 16 24 31 32 48 62 93 96 124 186 248 372 496 744 992 1488 2976 463907 927814 1391721 1855628 2783442 3711256 5566884 7422512 11133768 14381117 14845024 22267536 28762234 43143351 44535072 57524468 86286702 115048936 172573404 230097872 345146808 460195744 690293616 1380587232