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1378960152 = 2331791991613
BaseRepresentation
bin101001000110001…
…0100001100011000
310120002202102201020
41102030110030120
510311003211102
6344455522440
746112652663
oct12214241430
93502672636
101378960152
11648429199
12325989420
1318c8c2c6b
14d11d66da
15810dabbc
hex52314318

1378960152 has 64 divisors (see below), whose sum is σ = 3486240000. Its totient is φ = 454506624.

The previous prime is 1378960133. The next prime is 1378960153. The reversal of 1378960152 is 2510698731.

It is a super-2 number, since 2×13789601522 = 3803062201607726208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378960153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 854098 + ... + 855710.

It is an arithmetic number, because the mean of its divisors is an integer number (54472500).

Almost surely, 21378960152 is an apocalyptic number.

1378960152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1378960152 is an abundant number, since it is smaller than the sum of its proper divisors (2107279848).

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

1378960152 is a wasteful number, since it uses less digits than its factorization.

1378960152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1996 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1378960152 is about 37134.3527208971. The cubic root of 1378960152 is about 1113.0565734513.

The spelling of 1378960152 in words is "one billion, three hundred seventy-eight million, nine hundred sixty thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 24 179 199 358 398 537 597 716 796 1074 1194 1432 1592 1613 2148 2388 3226 4296 4776 4839 6452 9678 12904 19356 35621 38712 71242 106863 142484 213726 284968 288727 320987 427452 577454 641974 854904 866181 962961 1154908 1283948 1732362 1925922 2309816 2567896 3464724 3851844 6929448 7703688 57456673 114913346 172370019 229826692 344740038 459653384 689480076 1378960152