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12901395 = 351366161
BaseRepresentation
bin110001001101…
…110000010011
3220021110101110
4301031300103
511300321040
61140304403
7214442253
oct61156023
926243343
1012901395
117312011
1243a2103
132899380
1419db963
1511ec980
hexc4dc13

12901395 has 16 divisors (see below), whose sum is σ = 22230432. Its totient is φ = 6351360.

The previous prime is 12901393. The next prime is 12901403. The reversal of 12901395 is 59310921.

It is not a de Polignac number, because 12901395 - 21 = 12901393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12901393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32886 + ... + 33275.

It is an arithmetic number, because the mean of its divisors is an integer number (1389402).

Almost surely, 212901395 is an apocalyptic number.

12901395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12901395 is a deficient number, since it is larger than the sum of its proper divisors (9329037).

12901395 is a wasteful number, since it uses less digits than its factorization.

12901395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66182.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 12901395 is about 3591.8511940224. The cubic root of 12901395 is about 234.5374635356.

The spelling of 12901395 in words is "twelve million, nine hundred one thousand, three hundred ninety-five".

Divisors: 1 3 5 13 15 39 65 195 66161 198483 330805 860093 992415 2580279 4300465 12901395