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2855169156 = 223733990109
BaseRepresentation
bin1010101000101110…
…0110110010000100
321100222111121202210
42222023212302010
521321410403111
61151152103420
7130516352220
oct25213466204
97328447683
102855169156
111235739934
12678234b70
133666a5408
141d12a5780
1511a9d60a6
hexaa2e6c84

2855169156 has 24 divisors (see below), whose sum is σ = 7613784640. Its totient is φ = 815762592.

The previous prime is 2855169143. The next prime is 2855169173. The reversal of 2855169156 is 6519615582.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16994971 + ... + 16995138.

Almost surely, 22855169156 is an apocalyptic number.

It is an amenable number.

2855169156 is an abundant number, since it is smaller than the sum of its proper divisors (4758615484).

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

2855169156 is a wasteful number, since it uses less digits than its factorization.

2855169156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33990123 (or 33990121 counting only the distinct ones).

The product of its digits is 648000, while the sum is 48.

The square root of 2855169156 is about 53433.7829093168. The cubic root of 2855169156 is about 1418.6565942996.

The spelling of 2855169156 in words is "two billion, eight hundred fifty-five million, one hundred sixty-nine thousand, one hundred fifty-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 33990109 67980218 101970327 135960436 203940654 237930763 407881308 475861526 713792289 951723052 1427584578 2855169156