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169057252 = 227213431543
BaseRepresentation
bin10100001001110…
…01101111100100
3102210002222221201
422010321233210
5321234313002
624435252244
74121651200
oct1204715744
9383088851
10169057252
1187479241
124874a084
13290421a0
1418649b00
15ec96087
hexa139be4

169057252 has 72 divisors (see below), whose sum is σ = 379490496. Its totient is φ = 65282112.

The previous prime is 169057241. The next prime is 169057267. The reversal of 169057252 is 252750961.

169057252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108793 + ... + 110335.

Almost surely, 2169057252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169057252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189745248).

169057252 is an abundant number, since it is smaller than the sum of its proper divisors (210433244).

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

169057252 is a wasteful number, since it uses less digits than its factorization.

169057252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617 (or 1608 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 169057252 is about 13002.2018135391. The cubic root of 169057252 is about 552.9399069455.

The spelling of 169057252 in words is "one hundred sixty-nine million, fifty-seven thousand, two hundred fifty-two".

Divisors: 1 2 4 7 13 14 26 28 43 49 52 86 91 98 172 182 196 301 364 559 602 637 1118 1204 1274 1543 2107 2236 2548 3086 3913 4214 6172 7826 8428 10801 15652 20059 21602 27391 40118 43204 54782 66349 75607 80236 109564 132698 140413 151214 265396 280826 302428 464443 561652 862537 928886 982891 1725074 1857772 1965782 3251101 3450148 3931564 6037759 6502202 12075518 13004404 24151036 42264313 84528626 169057252