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12210051 = 372292539
BaseRepresentation
bin101110100100…
…111110000011
3211222100001010
4232210332003
511111210201
61113412003
7205532550
oct56447603
924870033
1012210051
11698a657
12410a003
1326b67a9
14189ba27
151112bd6
hexba4f83

12210051 has 16 divisors (see below), whose sum is σ = 18694400. Its totient is φ = 6943968.

The previous prime is 12210041. The next prime is 12210059. The reversal of 12210051 is 15001221.

It is not a de Polignac number, because 12210051 - 25 = 12210019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210059) 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, 3540 + ... + 6078.

It is an arithmetic number, because the mean of its divisors is an integer number (1168400).

Almost surely, 212210051 is an apocalyptic number.

12210051 is a deficient number, since it is larger than the sum of its proper divisors (6484349).

12210051 is a wasteful number, since it uses less digits than its factorization.

12210051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2778.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 12210051 is about 3494.2883395621. The cubic root of 12210051 is about 230.2709535173.

Adding to 12210051 its reverse (15001221), we get a palindrome (27211272).

The spelling of 12210051 in words is "twelve million, two hundred ten thousand, fifty-one".

Divisors: 1 3 7 21 229 687 1603 2539 4809 7617 17773 53319 581431 1744293 4070017 12210051