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1334809637 = 72101269713
BaseRepresentation
bin100111110001111…
…1001010000100101
310110000200100120222
41033203321100211
510213202402022
6340241334125
745035460200
oct11743712045
93400610528
101334809637
11625513267
12313037345
131837051b5
14c93c2937
157c2b9242
hex4f8f9425

1334809637 has 12 divisors (see below), whose sum is σ = 1568117196. Its totient is φ = 1132790400.

The previous prime is 1334809631. The next prime is 1334809643. The reversal of 1334809637 is 7369084331.

It is an interprime number because it is at equal distance from previous prime (1334809631) and next prime (1334809643).

It can be written as a sum of positive squares in 2 ways, for example, as 1241223361 + 93586276 = 35231^2 + 9674^2 .

It is not a de Polignac number, because 1334809637 - 26 = 1334809573 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1334809631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129908 + ... + 139805.

It is an arithmetic number, because the mean of its divisors is an integer number (130676433).

Almost surely, 21334809637 is an apocalyptic number.

It is an amenable number.

1334809637 is a deficient number, since it is larger than the sum of its proper divisors (233307559).

1334809637 is a wasteful number, since it uses less digits than its factorization.

1334809637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269828 (or 269821 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 1334809637 is about 36535.0466949202. The cubic root of 1334809637 is about 1101.0484870728.

The spelling of 1334809637 in words is "one billion, three hundred thirty-four million, eight hundred nine thousand, six hundred thirty-seven".

Divisors: 1 7 49 101 707 4949 269713 1887991 13215937 27241013 190687091 1334809637