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1250130401 = 13618917713
BaseRepresentation
bin100101010000011…
…0111100111100001
310020010100012111222
41022200313213201
510030013133101
6324014344425
742656635022
oct11240674741
93203305458
101250130401
11591736523
122aa7bb115
1316bcc7040
14bc05cc49
1574b3e01b
hex4a8379e1

1250130401 has 16 divisors (see below), whose sum is σ = 1383817680. Its totient is φ = 1122232320.

The previous prime is 1250130389. The next prime is 1250130419. The reversal of 1250130401 is 1040310521.

It can be written as a sum of positive squares in 8 ways, for example, as 188348176 + 1061782225 = 13724^2 + 32585^2 .

It is a cyclic number.

It is not a de Polignac number, because 1250130401 - 26 = 1250130337 is a prime.

It is a Duffinian number.

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 1250130401.

It is not an unprimeable number, because it can be changed into a prime (1250130491) 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, 61721 + ... + 79433.

It is an arithmetic number, because the mean of its divisors is an integer number (86488605).

Almost surely, 21250130401 is an apocalyptic number.

It is an amenable number.

1250130401 is a deficient number, since it is larger than the sum of its proper divisors (133687279).

1250130401 is a wasteful number, since it uses less digits than its factorization.

1250130401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17876.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1250130401 is about 35357.1831598616. The cubic root of 1250130401 is about 1077.2548024385.

Adding to 1250130401 its reverse (1040310521), we get a palindrome (2290440922).

The spelling of 1250130401 in words is "one billion, two hundred fifty million, one hundred thirty thousand, four hundred one".

Divisors: 1 13 61 89 793 1157 5429 17713 70577 230269 1080493 1576457 14046409 20493941 96163877 1250130401