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10623956149 = 172422925793
BaseRepresentation
bin10011110010011110…
…01011010010110101
31000102101211220001101
421321033023102311
5133224213044044
64514112130101
7524162065042
oct117117132265
930371756041
1010623956149
114561a45554
122085b36931
1310040530b1
1472ad841c9
15422a5dcd4
hex2793cb4b5

10623956149 has 8 divisors (see below), whose sum is σ = 11249795160. Its totient is φ = 9998217216.

The previous prime is 10623956141. The next prime is 10623956171. The reversal of 10623956149 is 94165932601.

It can be written as a sum of positive squares in 4 ways, for example, as 39250225 + 10584705924 = 6265^2 + 102882^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10623956149 - 23 = 10623956141 is a prime.

It is a super-2 number, since 2×106239561492 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10623956099 and 10623956108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10623956141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398997 + ... + 424789.

It is an arithmetic number, because the mean of its divisors is an integer number (1406224395).

Almost surely, 210623956149 is an apocalyptic number.

It is an amenable number.

10623956149 is a deficient number, since it is larger than the sum of its proper divisors (625839011).

10623956149 is a wasteful number, since it uses less digits than its factorization.

10623956149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50039.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 10623956149 in words is "ten billion, six hundred twenty-three million, nine hundred fifty-six thousand, one hundred forty-nine".

Divisors: 1 17 24229 25793 411893 438481 624938597 10623956149