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101680055 = 51031791103
BaseRepresentation
bin1100000111110…
…00001110110111
321002022212210222
412003320032313
5202012230210
614031204555
72343160211
oct603701667
9232285728
10101680055
1152439804
122a07675b
13180b1419
14d70b5b1
158dd7655
hex60f83b7

101680055 has 16 divisors (see below), whose sum is σ = 124001280. Its totient is φ = 80031648.

The previous prime is 101679997. The next prime is 101680087. The reversal of 101680055 is 550086101.

It is a cyclic number.

It is not a de Polignac number, because 101680055 - 210 = 101679031 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91634 + ... + 92736.

It is an arithmetic number, because the mean of its divisors is an integer number (7750080).

Almost surely, 2101680055 is an apocalyptic number.

101680055 is a deficient number, since it is larger than the sum of its proper divisors (22321225).

101680055 is a wasteful number, since it uses less digits than its factorization.

101680055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390.

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 101680055 is about 10083.6528599511. The cubic root of 101680055 is about 466.7438355945.

The spelling of 101680055 in words is "one hundred one million, six hundred eighty thousand, fifty-five".

Divisors: 1 5 103 179 515 895 1103 5515 18437 92185 113609 197437 568045 987185 20336011 101680055