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169000100 = 22528092089
BaseRepresentation
bin10100001001010…
…11110010100100
3102210000002112222
422010223302210
5321231000400
624434131512
74121322443
oct1204536244
9383002488
10169000100
118743a305
1248720b98
1329022179
1418632d5a
15ec84185
hexa12bca4

169000100 has 36 divisors (see below), whose sum is σ = 367359300. Its totient is φ = 67484160.

The previous prime is 169000061. The next prime is 169000103. The reversal of 169000100 is 1000961.

It can be written as a sum of positive squares in 6 ways, for example, as 13897984 + 155102116 = 3728^2 + 12454^2 .

It is a super-2 number, since 2×1690001002 = 57122067600020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169000103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79856 + ... + 81944.

It is an arithmetic number, because the mean of its divisors is an integer number (10204425).

Almost surely, 2169000100 is an apocalyptic number.

169000100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169000100 is an abundant number, since it is smaller than the sum of its proper divisors (198359200).

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

169000100 is a wasteful number, since it uses less digits than its factorization.

169000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2905 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 169000100 is about 13000.0038461533. The cubic root of 169000100 is about 552.8775904167.

The spelling of 169000100 in words is "one hundred sixty-nine million, one hundred", and thus it is an aban number.

Divisors: 1 2 4 5 10 20 25 50 100 809 1618 2089 3236 4045 4178 8090 8356 10445 16180 20225 20890 40450 41780 52225 80900 104450 208900 1690001 3380002 6760004 8450005 16900010 33800020 42250025 84500050 169000100