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10180128909 = 310332945401
BaseRepresentation
bin10010111101100100…
…00111000010001101
3222021110201010112110
421132302013002031
5131322103111114
64402055254233
7510162445056
oct113662070215
928243633473
1010180128909
114354465585
121b8137a379
13c63107c22
146c805172d
153e8ade759
hex25ec8708d

10180128909 has 8 divisors (see below), whose sum is σ = 13705287232. Its totient is φ = 6720861600.

The previous prime is 10180128851. The next prime is 10180128911. The reversal of 10180128909 is 90982108101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10180128909 - 29 = 10180128397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10180128949) 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, 16472392 + ... + 16473009.

It is an arithmetic number, because the mean of its divisors is an integer number (1713160904).

Almost surely, 210180128909 is an apocalyptic number.

It is an amenable number.

10180128909 is a deficient number, since it is larger than the sum of its proper divisors (3525158323).

10180128909 is a wasteful number, since it uses less digits than its factorization.

10180128909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32945507.

The product of its (nonzero) digits is 10368, while the sum is 39.

The spelling of 10180128909 in words is "ten billion, one hundred eighty million, one hundred twenty-eight thousand, nine hundred nine".

Divisors: 1 3 103 309 32945401 98836203 3393376303 10180128909