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212315708 = 221120632339
BaseRepresentation
bin11001010011110…
…10111000111100
3112210111202101202
430221322320330
5413323100313
633022355032
75155440143
oct1451727074
9483452352
10212315708
11a9934a30
125b12ba78
1334ca9bc7
14202aa75a
151398d558
hexca7ae3c

212315708 has 24 divisors (see below), whose sum is σ = 405699840. Its totient is φ = 96419120.

The previous prime is 212315707. The next prime is 212315717. The reversal of 212315708 is 807513212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212315707) 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, 89603 + ... + 91941.

It is an arithmetic number, because the mean of its divisors is an integer number (16904160).

Almost surely, 2212315708 is an apocalyptic number.

It is an amenable number.

212315708 is a deficient number, since it is larger than the sum of its proper divisors (193384132).

212315708 is a wasteful number, since it uses less digits than its factorization.

212315708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 212315708 is about 14571.0572025505. The cubic root of 212315708 is about 596.5690367329.

The spelling of 212315708 in words is "two hundred twelve million, three hundred fifteen thousand, seven hundred eight".

Divisors: 1 2 4 11 22 44 2063 2339 4126 4678 8252 9356 22693 25729 45386 51458 90772 102916 4825357 9650714 19301428 53078927 106157854 212315708