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102100687918 = 2317123194159
BaseRepresentation
bin101111100010110101…
…1001101110000101110
3100202112120110100022221
41133011223031300232
53133100234003133
6114523204025554
710243102346035
oct1370553156056
9322476410287
10102100687918
113a3341a4019
12179553922ba
139821aab748
144d2804971c
1529c888aa2d
hex17c5acdc2e

102100687918 has 16 divisors (see below), whose sum is σ = 160318033920. Its totient is φ = 48707731800.

The previous prime is 102100687877. The next prime is 102100687919. The reversal of 102100687918 is 819786001201.

It is a happy number.

102100687918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100687919) 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, 11592678 + ... + 11601481.

It is an arithmetic number, because the mean of its divisors is an integer number (10019877120).

Almost surely, 2102100687918 is an apocalyptic number.

102100687918 is a deficient number, since it is larger than the sum of its proper divisors (58217346002).

102100687918 is a wasteful number, since it uses less digits than its factorization.

102100687918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23194263.

The product of its (nonzero) digits is 48384, while the sum is 43.

The spelling of 102100687918 in words is "one hundred two billion, one hundred million, six hundred eighty-seven thousand, nine hundred eighteen".

Divisors: 1 2 31 62 71 142 2201 4402 23194159 46388318 719018929 1438037858 1646785289 3293570578 51050343959 102100687918