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169000101 = 342086421
BaseRepresentation
bin10100001001010…
…11110010100101
3102210000002120000
422010223302211
5321231000401
624434131513
74121322444
oct1204536245
9383002500
10169000101
118743a306
1248720b99
132902217a
1418632d5b
15ec84186
hexa12bca5

169000101 has 10 divisors (see below), whose sum is σ = 252457062. Its totient is φ = 112666680.

The previous prime is 169000061. The next prime is 169000103. The reversal of 169000101 is 101000961.

It can be written as a sum of positive squares in only one way, i.e., 161951076 + 7049025 = 12726^2 + 2655^2 .

It is not a de Polignac number, because 169000101 - 218 = 168737957 is a prime.

It is a super-2 number, since 2×1690001012 = 57122068276020402, which contains 22 as substring.

It is a congruent number.

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

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 9 ways as a sum of consecutive naturals, for example, 1043130 + ... + 1043291.

Almost surely, 2169000101 is an apocalyptic number.

It is an amenable number.

169000101 is a deficient number, since it is larger than the sum of its proper divisors (83456961).

169000101 is an equidigital number, since it uses as much as digits as its factorization.

169000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086433 (or 2086424 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 169000101 is about 13000.0038846148. The cubic root of 169000101 is about 552.8775915072.

The spelling of 169000101 in words is "one hundred sixty-nine million, one hundred one", and thus it is an aban number.

Divisors: 1 3 9 27 81 2086421 6259263 18777789 56333367 169000101