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12949475 = 527211312
BaseRepresentation
bin110001011001…
…011111100011
3220100220100012
4301121133203
511303340400
61141315135
7215032400
oct61313743
926326305
1012949475
117345150
124405aab
1328b5216
141a112a7
15120bd35
hexc597e3

12949475 has 54 divisors (see below), whose sum is σ = 21055572. Its totient is φ = 7812000.

The previous prime is 12949471. The next prime is 12949499. The reversal of 12949475 is 57494921.

It is not a de Polignac number, because 12949475 - 22 = 12949471 is a prime.

Its product of digits (90720) is a multiple of the sum of its prime divisors (54).

It is not an unprimeable number, because it can be changed into a prime (12949471) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 417710 + ... + 417740.

It is an arithmetic number, because the mean of its divisors is an integer number (389918).

Almost surely, 212949475 is an apocalyptic number.

12949475 is a deficient number, since it is larger than the sum of its proper divisors (8106097).

12949475 is a wasteful number, since it uses less digits than its factorization.

12949475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 54 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 12949475 is about 3598.5378975356. The cubic root of 12949475 is about 234.8284548574.

The spelling of 12949475 in words is "twelve million, nine hundred forty-nine thousand, four hundred seventy-five".

Divisors: 1 5 7 11 25 31 35 49 55 77 155 175 217 245 275 341 385 539 775 961 1085 1225 1519 1705 1925 2387 2695 4805 5425 6727 7595 8525 10571 11935 13475 16709 24025 33635 37975 47089 52855 59675 73997 83545 168175 235445 264275 369985 417725 517979 1177225 1849925 2589895 12949475