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1402907012 = 221326978981
BaseRepresentation
bin101001110011110…
…1010100110000100
310121202211001121222
41103213222212010
510333121011022
6351113055512
746523340623
oct12347524604
93552731558
101402907012
1165a9a4891
123319b7598
131948589c0
14d446b6ba
158326b242
hex539ea984

1402907012 has 12 divisors (see below), whose sum is σ = 2643940236. Its totient is φ = 647495520.

The previous prime is 1402906993. The next prime is 1402907017. The reversal of 1402907012 is 2107092041.

It can be written as a sum of positive squares in 2 ways, for example, as 413552896 + 989354116 = 20336^2 + 31454^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1402907017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13489439 + ... + 13489542.

It is an arithmetic number, because the mean of its divisors is an integer number (220328353).

Almost surely, 21402907012 is an apocalyptic number.

It is an amenable number.

1402907012 is a deficient number, since it is larger than the sum of its proper divisors (1241033224).

1402907012 is a wasteful number, since it uses less digits than its factorization.

1402907012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26978998 (or 26978996 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1402907012 is about 37455.4003048960. The cubic root of 1402907012 is about 1119.4627025302.

Adding to 1402907012 its reverse (2107092041), we get a palindrome (3509999053).

The spelling of 1402907012 in words is "one billion, four hundred two million, nine hundred seven thousand, twelve".

Divisors: 1 2 4 13 26 52 26978981 53957962 107915924 350726753 701453506 1402907012