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1380138970 = 25767729123
BaseRepresentation
bin101001001000011…
…0011111111011010
310120011222022202011
41102100303333122
510311303421340
6344541100134
746125662530
oct12220637732
93504868664
101380138970
11649063921
1232625764a
1318cc166a2
14d1422150
15812700ea
hex52433fda

1380138970 has 32 divisors (see below), whose sum is σ = 2843434368. Its totient is φ = 472475328.

The previous prime is 1380138901. The next prime is 1380138983. The reversal of 1380138970 is 798310831.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32829 + ... + 61951.

It is an arithmetic number, because the mean of its divisors is an integer number (88857324).

Almost surely, 21380138970 is an apocalyptic number.

1380138970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380138970 is an abundant number, since it is smaller than the sum of its proper divisors (1463295398).

1380138970 is a wasteful number, since it uses less digits than its factorization.

1380138970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29814.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1380138970 is about 37150.2216682485. The cubic root of 1380138970 is about 1113.3736523301.

The spelling of 1380138970 in words is "one billion, three hundred eighty million, one hundred thirty-eight thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 677 1354 3385 4739 6770 9478 23695 29123 47390 58246 145615 203861 291230 407722 1019305 2038610 19716271 39432542 98581355 138013897 197162710 276027794 690069485 1380138970