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1378930080 = 2535111791459
BaseRepresentation
bin101001000110000…
…1100110110100000
310120002200220110110
41102030030312200
510311001230310
6344455131320
746112466213
oct12214146640
93502626413
101378930080
11648408640
12325973b40
1318c8b2378
14d11c977a
15810d1d20
hex5230cda0

1378930080 has 192 divisors, whose sum is σ = 4768243200. Its totient is φ = 332190720.

The previous prime is 1378930067. The next prime is 1378930151. The reversal of 1378930080 is 800398731.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 944391 + ... + 945849.

It is an arithmetic number, because the mean of its divisors is an integer number (24834600).

Almost surely, 21378930080 is an apocalyptic number.

1378930080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378930080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2384121600).

1378930080 is an abundant number, since it is smaller than the sum of its proper divisors (3389313120).

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

1378930080 is a wasteful number, since it uses less digits than its factorization.

1378930080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1667 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 1378930080 is about 37133.9478105951. The cubic root of 1378930080 is about 1113.0484823109.

The spelling of 1378930080 in words is "one billion, three hundred seventy-eight million, nine hundred thirty thousand, eighty".