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12210901 = 193731723
BaseRepresentation
bin101110100101…
…001011010101
3211222101012121
4232211023111
511111222101
61113415541
7205535203
oct56451325
924871177
1012210901
11699025a
12410a5b1
1326b6cb1
14189c073
1511130a1
hexba52d5

12210901 has 8 divisors (see below), whose sum is σ = 12895520. Its totient is φ = 11530512.

The previous prime is 12210883. The next prime is 12210937. The reversal of 12210901 is 10901221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210901 - 27 = 12210773 is a prime.

It is a super-2 number, since 2×122109012 = 298212206463602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210971) 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 7 ways as a sum of consecutive naturals, for example, 6226 + ... + 7948.

It is an arithmetic number, because the mean of its divisors is an integer number (1611940).

Almost surely, 212210901 is an apocalyptic number.

It is an amenable number.

12210901 is a deficient number, since it is larger than the sum of its proper divisors (684619).

12210901 is a wasteful number, since it uses less digits than its factorization.

12210901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 12210901 is about 3494.4099645004. The cubic root of 12210901 is about 230.2762968138.

The spelling of 12210901 in words is "twelve million, two hundred ten thousand, nine hundred one".

Divisors: 1 19 373 1723 7087 32737 642679 12210901