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169028472 = 233232910559
BaseRepresentation
bin10100001001100…
…10101101111000
3102210001112110210
422010302231320
5321232402342
624434511120
74121501244
oct1204625570
9383045423
10169028472
1187459658
12487354a0
1329032062
141863d424
15ec8c79c
hexa132b78

169028472 has 64 divisors (see below), whose sum is σ = 456192000. Its totient is φ = 52029824.

The previous prime is 169028423. The next prime is 169028537. The reversal of 169028472 is 274820961.

It is a self number, because there is not a number n which added to its sum of digits gives 169028472.

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 15 ways as a sum of consecutive naturals, for example, 10729 + ... + 21287.

It is an arithmetic number, because the mean of its divisors is an integer number (7128000).

Almost surely, 2169028472 is an apocalyptic number.

169028472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169028472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228096000).

169028472 is an abundant number, since it is smaller than the sum of its proper divisors (287163528).

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

169028472 is a wasteful number, since it uses less digits than its factorization.

169028472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10620 (or 10616 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 169028472 is about 13001.0950308041. The cubic root of 169028472 is about 552.9085280024.

The spelling of 169028472 in words is "one hundred sixty-nine million, twenty-eight thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 29 46 58 69 87 92 116 138 174 184 232 276 348 552 667 696 1334 2001 2668 4002 5336 8004 10559 16008 21118 31677 42236 63354 84472 126708 242857 253416 306211 485714 612422 728571 918633 971428 1224844 1457142 1837266 1942856 2449688 2914284 3674532 5828568 7042853 7349064 14085706 21128559 28171412 42257118 56342824 84514236 169028472