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100604845 = 5112166289
BaseRepresentation
bin1011111111100…
…01101110101101
321000022020220101
411333301232231
5201223323340
613552151101
72331061405
oct577615655
9230266811
10100604845
1151874a00
1229838491
1317ac5bc3
14d50b805
158c73c9a
hex5ff1bad

100604845 has 12 divisors (see below), whose sum is σ = 132699420. Its totient is φ = 73166720.

The previous prime is 100604843. The next prime is 100604869. The reversal of 100604845 is 548406001.

It can be written as a sum of positive squares in 2 ways, for example, as 47416996 + 53187849 = 6886^2 + 7293^2 .

It is not a de Polignac number, because 100604845 - 21 = 100604843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100604843) 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 11 ways as a sum of consecutive naturals, for example, 82540 + ... + 83749.

It is an arithmetic number, because the mean of its divisors is an integer number (11058285).

Almost surely, 2100604845 is an apocalyptic number.

It is an amenable number.

100604845 is a deficient number, since it is larger than the sum of its proper divisors (32094575).

100604845 is a wasteful number, since it uses less digits than its factorization.

100604845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166316 (or 166305 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 100604845 is about 10030.1966580920. The cubic root of 100604845 is about 465.0928168672.

The spelling of 100604845 in words is "one hundred million, six hundred four thousand, eight hundred forty-five".

Divisors: 1 5 11 55 121 605 166289 831445 1829179 9145895 20120969 100604845