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212113072 = 2425152817
BaseRepresentation
bin11001010010010…
…01011010110000
3112210010110102201
430221021122300
5413300104242
633014152544
75153634313
oct1451113260
9483113381
10212113072
11a9806766
125b052754
1334c388c2
142025697a
151394d4b7
hexca496b0

212113072 has 20 divisors (see below), whose sum is σ = 412614216. Its totient is φ = 105632000.

The previous prime is 212113039. The next prime is 212113073. The reversal of 212113072 is 270311212.

It is not an unprimeable number, because it can be changed into a prime (212113073) 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, 22393 + ... + 30424.

Almost surely, 2212113072 is an apocalyptic number.

It is an amenable number.

212113072 is a deficient number, since it is larger than the sum of its proper divisors (200501144).

212113072 is a wasteful number, since it uses less digits than its factorization.

212113072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53076 (or 53070 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 212113072 is about 14564.1021693752. The cubic root of 212113072 is about 596.3791860569.

Adding to 212113072 its reverse (270311212), we get a palindrome (482424284).

The spelling of 212113072 in words is "two hundred twelve million, one hundred thirteen thousand, seventy-two".

Divisors: 1 2 4 8 16 251 502 1004 2008 4016 52817 105634 211268 422536 845072 13257067 26514134 53028268 106056536 212113072