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212495916 = 22317707993
BaseRepresentation
bin11001010101001…
…10111000101100
3112210211220121010
430222212320230
5413344332131
633030305220
75160120423
oct1452467054
9483756533
10212495916
11a9a48366
125b1b8210
1335040c39
14203162ba
15139c6b46
hexcaa6e2c

212495916 has 12 divisors (see below), whose sum is σ = 495823832. Its totient is φ = 70831968.

The previous prime is 212495911. The next prime is 212495923. The reversal of 212495916 is 619594212.

212495916 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (212495911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8853985 + ... + 8854008.

Almost surely, 2212495916 is an apocalyptic number.

It is an amenable number.

212495916 is an abundant number, since it is smaller than the sum of its proper divisors (283327916).

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

212495916 is a wasteful number, since it uses less digits than its factorization.

212495916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17708000 (or 17707998 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 212495916 is about 14577.2396563959. The cubic root of 212495916 is about 596.7377730487.

The spelling of 212495916 in words is "two hundred twelve million, four hundred ninety-five thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 17707993 35415986 53123979 70831972 106247958 212495916