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12872901 = 3151157181
BaseRepresentation
bin110001000110…
…110011000101
3220020000022010
4301012303011
511243413101
61135524433
7214263216
oct61066305
926200263
1012872901
1172a2668
124389719
132889402
1419d140d
1511e42d6
hexc46cc5

12872901 has 16 divisors (see below), whose sum is σ = 17483648. Its totient is φ = 8424000.

The previous prime is 12872887. The next prime is 12872933. The reversal of 12872901 is 10927821.

It is not a de Polignac number, because 12872901 - 25 = 12872869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872941) 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, 71031 + ... + 71211.

It is an arithmetic number, because the mean of its divisors is an integer number (1092728).

Almost surely, 212872901 is an apocalyptic number.

It is an amenable number.

12872901 is a deficient number, since it is larger than the sum of its proper divisors (4610747).

12872901 is a wasteful number, since it uses less digits than its factorization.

12872901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 12872901 is about 3587.8825231604. The cubic root of 12872901 is about 234.3646699092.

The spelling of 12872901 in words is "twelve million, eight hundred seventy-two thousand, nine hundred one".

Divisors: 1 3 151 157 181 453 471 543 23707 27331 28417 71121 81993 85251 4290967 12872901