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13231040294 = 2157263160217
BaseRepresentation
bin11000101001010000…
…11010011100100110
31021011002112111011102
430110220122130212
5204044121242134
610024523040102
7645606662333
oct142450323446
937132474142
1013231040294
11567a63944a
122693070032
13132b206634
148d730b98a
1552688d37e
hex314a1a726

13231040294 has 16 divisors (see below), whose sum is σ = 20049039648. Its totient is φ = 6548348352.

The previous prime is 13231040293. The next prime is 13231040321. The reversal of 13231040294 is 49204013231.

It is a super-2 number, since 2×132310402942 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231040293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474 + ... + 162690.

It is an arithmetic number, because the mean of its divisors is an integer number (1253064978).

Almost surely, 213231040294 is an apocalyptic number.

13231040294 is a deficient number, since it is larger than the sum of its proper divisors (6817999354).

13231040294 is a wasteful number, since it uses less digits than its factorization.

13231040294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160639.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 13231040294 in words is "thirteen billion, two hundred thirty-one million, forty thousand, two hundred ninety-four".

Divisors: 1 2 157 263 314 526 41291 82582 160217 320434 25154069 42137071 50308138 84274142 6615520147 13231040294