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216157162 = 2138313737
BaseRepresentation
bin11001110001001…
…00101111101010
3120001201220212211
430320210233222
5420314012122
633240555334
75233206544
oct1470445752
9501656784
10216157162
11101019091
1260482b4a
1335a23560
14209ca694
1513e9b877
hexce24bea

216157162 has 8 divisors (see below), whose sum is σ = 349176996. Its totient is φ = 99764832.

The previous prime is 216157121. The next prime is 216157187. The reversal of 216157162 is 261751612.

It can be written as a sum of positive squares in 2 ways, for example, as 214358881 + 1798281 = 14641^2 + 1341^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4156843 + ... + 4156894.

Almost surely, 2216157162 is an apocalyptic number.

216157162 is a deficient number, since it is larger than the sum of its proper divisors (133019834).

216157162 is a wasteful number, since it uses less digits than its factorization.

216157162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313752.

The product of its digits is 5040, while the sum is 31.

The square root of 216157162 is about 14702.2842442935. The cubic root of 216157162 is about 600.1454850910.

The spelling of 216157162 in words is "two hundred sixteen million, one hundred fifty-seven thousand, one hundred sixty-two".

Divisors: 1 2 13 26 8313737 16627474 108078581 216157162