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12969495 = 32571119197
BaseRepresentation
bin110001011110…
…011000010111
3220101220210200
4301132120113
511310010440
61141551543
7215144640
oct61363027
926356720
1012969495
1173591a0
1244155b3
1328c1376
141a186c7
151212c30
hexc5e617

12969495 has 96 divisors (see below), whose sum is σ = 29652480. Its totient is φ = 5080320.

The previous prime is 12969491. The next prime is 12969547. The reversal of 12969495 is 59496921.

It is not a de Polignac number, because 12969495 - 22 = 12969491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12969495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12969491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65737 + ... + 65933.

It is an arithmetic number, because the mean of its divisors is an integer number (308880).

Almost surely, 212969495 is an apocalyptic number.

12969495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12969495 is an abundant number, since it is smaller than the sum of its proper divisors (16682985).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12969495 is a wasteful number, since it uses less digits than its factorization.

12969495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245 (or 242 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 12969495 is about 3601.3185085466. The cubic root of 12969495 is about 234.9494081525.

The spelling of 12969495 in words is "twelve million, nine hundred sixty-nine thousand, four hundred ninety-five".

Divisors: 1 3 5 7 9 11 15 19 21 33 35 45 55 57 63 77 95 99 105 133 165 171 197 209 231 285 315 385 399 495 591 627 665 693 855 985 1045 1155 1197 1379 1463 1773 1881 1995 2167 2955 3135 3465 3743 4137 4389 5985 6501 6895 7315 8865 9405 10835 11229 12411 13167 15169 18715 19503 20685 21945 26201 32505 33687 41173 45507 56145 62055 65835 75845 78603 97515 123519 131005 136521 168435 205865 227535 235809 288211 370557 393015 617595 682605 864633 1179045 1441055 1852785 2593899 4323165 12969495