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12901273 = 7111311279
BaseRepresentation
bin110001001101…
…101110011001
3220021110012221
4301031232121
511300320043
61140304041
7214442020
oct61155631
926243187
1012901273
117311a10
1243a2021
1328992b8
1419db8b7
1511ec8ed
hexc4db99

12901273 has 16 divisors (see below), whose sum is σ = 16220160. Its totient is φ = 9968400.

The previous prime is 12901267. The next prime is 12901277. The reversal of 12901273 is 37210921.

It is a cyclic number.

It is not a de Polignac number, because 12901273 - 217 = 12770201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12901277) 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 15 ways as a sum of consecutive naturals, for example, 9448 + ... + 10726.

It is an arithmetic number, because the mean of its divisors is an integer number (1013760).

Almost surely, 212901273 is an apocalyptic number.

It is an amenable number.

12901273 is a deficient number, since it is larger than the sum of its proper divisors (3318887).

12901273 is a wasteful number, since it uses less digits than its factorization.

12901273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12901273 is about 3591.8342110961. The cubic root of 12901273 is about 234.5367242445.

The spelling of 12901273 in words is "twelve million, nine hundred one thousand, two hundred seventy-three".

Divisors: 1 7 11 77 131 917 1279 1441 8953 10087 14069 98483 167549 1172843 1843039 12901273