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216057052 = 22330116363
BaseRepresentation
bin11001110000011…
…00010011011100
3120001112211120001
430320030103130
5420302311202
633234504044
75232311641
oct1470142334
9501484501
10216057052
11100a5a952
1260435024
13359b9b13
14209a1dc8
1513e7bd87
hexce0c4dc

216057052 has 12 divisors (see below), whose sum is σ = 378237496. Its totient is φ = 107989200.

The previous prime is 216057031. The next prime is 216057067. The reversal of 216057052 is 250750612.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 216057052.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5023 + ... + 21385.

Almost surely, 2216057052 is an apocalyptic number.

It is an amenable number.

216057052 is a deficient number, since it is larger than the sum of its proper divisors (162180444).

216057052 is a wasteful number, since it uses less digits than its factorization.

216057052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19668 (or 19666 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 216057052 is about 14698.8792770061. The cubic root of 216057052 is about 600.0528212756.

The spelling of 216057052 in words is "two hundred sixteen million, fifty-seven thousand, fifty-two".

Divisors: 1 2 4 3301 6602 13204 16363 32726 65452 54014263 108028526 216057052