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212364131 = 7166718199
BaseRepresentation
bin11001010100001…
…10101101100011
3112210121012211012
430222012231203
5413331123011
633023411135
75156031260
oct1452065543
9483535735
10212364131
11a9968351
125b153aab
1334cc5c65
14202c0267
151399ca8b
hexca86b63

212364131 has 8 divisors (see below), whose sum is σ = 242860800. Its totient is φ = 181907208.

The previous prime is 212364091. The next prime is 212364203. The reversal of 212364131 is 131463212.

212364131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 212364131 - 26 = 212364067 is a prime.

It is a super-2 number, since 2×2123641312 = 90197048270770322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212364097 and 212364106.

It is not an unprimeable number, because it can be changed into a prime (212364631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2570 + ... + 20768.

It is an arithmetic number, because the mean of its divisors is an integer number (30357600).

Almost surely, 2212364131 is an apocalyptic number.

212364131 is a deficient number, since it is larger than the sum of its proper divisors (30496669).

212364131 is a wasteful number, since it uses less digits than its factorization.

212364131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19873.

The product of its digits is 864, while the sum is 23.

The square root of 212364131 is about 14572.7187236974. The cubic root of 212364131 is about 596.6143865987.

The spelling of 212364131 in words is "two hundred twelve million, three hundred sixty-four thousand, one hundred thirty-one".

Divisors: 1 7 1667 11669 18199 127393 30337733 212364131