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13192903951 = 103311277021
BaseRepresentation
bin11000100100101101…
…11011110100001111
31021001102202221221021
430102112323310033
5204004340411301
610021041415011
7644634555553
oct142226736417
937042687837
1013192903951
115660061007
12268233a467
131323343156
148d2221863
155233588a1
hex3125bbd0f

13192903951 has 4 divisors (see below), whose sum is σ = 13194191304. Its totient is φ = 13191616600.

The previous prime is 13192903949. The next prime is 13192904017. The reversal of 13192903951 is 15930929131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15930929131 = 131225456087.

It is a cyclic number.

It is not a de Polignac number, because 13192903951 - 21 = 13192903949 is a prime.

It is a super-2 number, since 2×131929039512 (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 = 13192903898 and 13192903907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13192903351) 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 3 ways as a sum of consecutive naturals, for example, 628180 + ... + 648841.

It is an arithmetic number, because the mean of its divisors is an integer number (3298547826).

Almost surely, 213192903951 is an apocalyptic number.

13192903951 is a deficient number, since it is larger than the sum of its proper divisors (1287353).

13192903951 is a wasteful number, since it uses less digits than its factorization.

13192903951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287352.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 13192903951 in words is "thirteen billion, one hundred ninety-two million, nine hundred three thousand, nine hundred fifty-one".

Divisors: 1 10331 1277021 13192903951