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100646057 = 3116719441
BaseRepresentation
bin1011111111110…
…11110010101001
321000101100102202
411333323302221
5201231133212
613553105545
72331322511
oct577736251
9230340382
10100646057
11518a2966
12298582b5
1317b0b8a5
14d51c841
158c810c2
hex5ffbca9

100646057 has 8 divisors (see below), whose sum is σ = 104520192. Its totient is φ = 96811200.

The previous prime is 100646053. The next prime is 100646071. The reversal of 100646057 is 750646001.

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

It is a cyclic number.

It is not a de Polignac number, because 100646057 - 22 = 100646053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100646053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544 + ... + 14897.

It is an arithmetic number, because the mean of its divisors is an integer number (13065024).

Almost surely, 2100646057 is an apocalyptic number.

It is an amenable number.

100646057 is a deficient number, since it is larger than the sum of its proper divisors (3874135).

100646057 is a wasteful number, since it uses less digits than its factorization.

100646057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19639.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 100646057 is about 10032.2508441526. The cubic root of 100646057 is about 465.1563154277.

The spelling of 100646057 in words is "one hundred million, six hundred forty-six thousand, fifty-seven".

Divisors: 1 31 167 5177 19441 602671 3246647 100646057