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107813820 = 22351796897
BaseRepresentation
bin1100110110100…
…01101110111100
321111212111202110
412123101232330
5210100020240
614410454020
72446255002
oct633215674
9244774673
10107813820
1155949134
1230134310
131944b27a
1410466a72
1596e9c80
hex66d1bbc

107813820 has 24 divisors (see below), whose sum is σ = 301878864. Its totient is φ = 28750336.

The previous prime is 107813807. The next prime is 107813833. The reversal of 107813820 is 28318701.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (107813807) and next prime (107813833).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898389 + ... + 898508.

It is an arithmetic number, because the mean of its divisors is an integer number (12578286).

Almost surely, 2107813820 is an apocalyptic number.

107813820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

107813820 is an abundant number, since it is smaller than the sum of its proper divisors (194065044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

107813820 is a wasteful number, since it uses less digits than its factorization.

107813820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796909 (or 1796907 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 107813820 is about 10383.3433921835. The cubic root of 107813820 is about 475.9465078885.

The spelling of 107813820 in words is "one hundred seven million, eight hundred thirteen thousand, eight hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1796897 3593794 5390691 7187588 8984485 10781382 17968970 21562764 26953455 35937940 53906910 107813820