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1357883681 = 71140943117
BaseRepresentation
bin101000011101111…
…1010100100100001
310111122002122020012
41100323322210201
510240104234211
6342424054305
745435551360
oct12073724441
93448078205
101357883681
11637543120
1231a904395
1318842388b
14cc4ab7d7
157e325d8b
hex50efa921

1357883681 has 16 divisors (see below), whose sum is σ = 1697124480. Its totient is φ = 1055479680.

The previous prime is 1357883671. The next prime is 1357883689. The reversal of 1357883681 is 1863887531.

It is a cyclic number.

It is not a de Polignac number, because 1357883681 - 214 = 1357867297 is a prime.

It is a super-2 number, since 2×13578836812 = 3687696182252219522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1357883689) 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, 9935 + ... + 53051.

It is an arithmetic number, because the mean of its divisors is an integer number (106070280).

Almost surely, 21357883681 is an apocalyptic number.

1357883681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1357883681 is a deficient number, since it is larger than the sum of its proper divisors (339240799).

1357883681 is a wasteful number, since it uses less digits than its factorization.

1357883681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43544.

The product of its digits is 967680, while the sum is 50.

The square root of 1357883681 is about 36849.4732798177. The cubic root of 1357883681 is about 1107.3566626045.

The spelling of 1357883681 in words is "one billion, three hundred fifty-seven million, eight hundred eighty-three thousand, six hundred eighty-one".

Divisors: 1 7 11 77 409 2863 4499 31493 43117 301819 474287 3320009 17634853 123443971 193983383 1357883681