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212351060 = 22571149543
BaseRepresentation
bin11001010100000…
…11100001010100
3112210120112220002
430222003201110
5413330213220
633023230432
75155645205
oct1452034124
9483515802
10212351060
11a9959549
125b148418
1334cc001c
14202b95ac
1513998c75
hexca83854

212351060 has 24 divisors (see below), whose sum is σ = 452221056. Its totient is φ = 83743520.

The previous prime is 212351057. The next prime is 212351077. The reversal of 212351060 is 60153212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 73352 + ... + 76191.

It is an arithmetic number, because the mean of its divisors is an integer number (18842544).

Almost surely, 2212351060 is an apocalyptic number.

212351060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212351060 is an abundant number, since it is smaller than the sum of its proper divisors (239869996).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212351060 is a wasteful number, since it uses less digits than its factorization.

212351060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149623 (or 149621 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 212351060 is about 14572.2702417983. The cubic root of 212351060 is about 596.6021458205.

The spelling of 212351060 in words is "two hundred twelve million, three hundred fifty-one thousand, sixty".

Divisors: 1 2 4 5 10 20 71 142 284 355 710 1420 149543 299086 598172 747715 1495430 2990860 10617553 21235106 42470212 53087765 106175530 212351060