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169900068 = 223131089103
BaseRepresentation
bin10100010000001…
…11100000100100
3102211200211002010
422020013200210
5321443300233
624505314220
74132061322
oct1210074044
9384624063
10169900068
11879a4488
1248a95970
13292789b0
14187c8d12
15edb0b63
hexa207824

169900068 has 24 divisors (see below), whose sum is σ = 426928768. Its totient is φ = 52276896.

The previous prime is 169900063. The next prime is 169900097. The reversal of 169900068 is 860009961.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 169899999 and 169900035.

It is not an unprimeable number, because it can be changed into a prime (169900063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544396 + ... + 544707.

Almost surely, 2169900068 is an apocalyptic number.

It is an amenable number.

169900068 is an abundant number, since it is smaller than the sum of its proper divisors (257028700).

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

169900068 is a wasteful number, since it uses less digits than its factorization.

169900068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1089123 (or 1089121 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 169900068 is about 13034.5720297983. The cubic root of 169900068 is about 553.8572575112.

The spelling of 169900068 in words is "one hundred sixty-nine million, nine hundred thousand, sixty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 1089103 2178206 3267309 4356412 6534618 13069236 14158339 28316678 42475017 56633356 84950034 169900068