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1375686013 = 13197970501
BaseRepresentation
bin101000111111111…
…0100110101111101
310112212121002102211
41101333310311331
510304133423023
6344301420421
746043065252
oct12177646575
93485532384
101375686013
116465a2299
1232486a711
1318c0178c0
14d09c3429
1580b90a0d
hex51ff4d7d

1375686013 has 16 divisors (see below), whose sum is σ = 1579244800. Its totient is φ = 1187784000.

The previous prime is 1375686001. The next prime is 1375686017. The reversal of 1375686013 is 3106865731.

It is a happy number.

It is not a de Polignac number, because 1375686013 - 29 = 1375685501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375686017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15738 + ... + 54763.

It is an arithmetic number, because the mean of its divisors is an integer number (98702800).

Almost surely, 21375686013 is an apocalyptic number.

1375686013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1375686013 is a deficient number, since it is larger than the sum of its proper divisors (203558787).

1375686013 is a wasteful number, since it uses less digits than its factorization.

1375686013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70612.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1375686013 is about 37090.2414793972. The cubic root of 1375686013 is about 1112.1749453567.

The spelling of 1375686013 in words is "one billion, three hundred seventy-five million, six hundred eighty-six thousand, thirteen".

Divisors: 1 13 19 79 247 1027 1501 19513 70501 916513 1339519 5569579 17413747 72404527 105822001 1375686013