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1364683881 = 311349118493
BaseRepresentation
bin101000101010111…
…0110110001101001
310112002220010100110
41101111312301221
510243324341011
6343225524533
745550423131
oct12125666151
93462803313
101364683881
11640368220
12321043749
13189964b72
14cd35bac1
157ec1aba6
hex51576c69

1364683881 has 16 divisors (see below), whose sum is σ = 1990699200. Its totient is φ = 824704320.

The previous prime is 1364683867. The next prime is 1364683883. The reversal of 1364683881 is 1883864631.

It is not a de Polignac number, because 1364683881 - 25 = 1364683849 is a prime.

It is a super-2 number, since 2×13646838812 = 3724724190122444322, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1364683881.

It is not an unprimeable number, because it can be changed into a prime (1364683883) 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, 47730 + ... + 70763.

It is an arithmetic number, because the mean of its divisors is an integer number (124418700).

Almost surely, 21364683881 is an apocalyptic number.

1364683881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1364683881 is a deficient number, since it is larger than the sum of its proper divisors (626015319).

1364683881 is a wasteful number, since it uses less digits than its factorization.

1364683881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118856.

The product of its digits is 663552, while the sum is 48.

The square root of 1364683881 is about 36941.6280231394. The cubic root of 1364683881 is about 1109.2021106346.

The spelling of 1364683881 in words is "one billion, three hundred sixty-four million, six hundred eighty-three thousand, eight hundred eighty-one".

Divisors: 1 3 11 33 349 1047 3839 11517 118493 355479 1303423 3910269 41354057 124062171 454894627 1364683881