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12312032075 = 527312269499
BaseRepresentation
bin10110111011101101…
…01011001101001011
31011210001021000212222
423131312223031023
5200203340011300
65353413324255
7614050355150
oct133566531513
934701230788
1012312032075
115248903a22
12247733668b
1312129b60a5
1484b244227
154c0d59785
hex2dddab34b

12312032075 has 24 divisors (see below), whose sum is σ = 18010752000. Its totient is φ = 8170192800.

The previous prime is 12312032059. The next prime is 12312032123. The reversal of 12312032075 is 57023021321.

It is not a de Polignac number, because 12312032075 - 24 = 12312032059 is a prime.

It is a super-2 number, since 2×123120320752 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1129325 + ... + 1140174.

It is an arithmetic number, because the mean of its divisors is an integer number (750448000).

Almost surely, 212312032075 is an apocalyptic number.

12312032075 is a deficient number, since it is larger than the sum of its proper divisors (5698719925).

12312032075 is a wasteful number, since it uses less digits than its factorization.

12312032075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269547 (or 2269542 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 12312032075 its reverse (57023021321), we get a palindrome (69335053396).

The spelling of 12312032075 in words is "twelve billion, three hundred twelve million, thirty-two thousand, seventy-five".

Divisors: 1 5 7 25 31 35 155 175 217 775 1085 5425 2269499 11347495 15886493 56737475 70354469 79432465 351772345 397162325 492481283 1758861725 2462406415 12312032075