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106638995 = 537576427
BaseRepresentation
bin1100101101100…
…10111010010011
321102122211012102
412112302322103
5204244421440
614325351015
72433262601
oct626627223
9242584172
10106638995
1155216501
122b86846b
13191295c8
141023c871
159566b15
hex65b2e93

106638995 has 8 divisors (see below), whose sum is σ = 131425584. Its totient is φ = 83005344.

The previous prime is 106638989. The next prime is 106638997. The reversal of 106638995 is 599836601.

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 106638995 - 226 = 39530131 is a prime.

It is a super-2 number, since 2×1066389952 = 22743750509220050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106638997) 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, 288029 + ... + 288398.

It is an arithmetic number, because the mean of its divisors is an integer number (16428198).

Almost surely, 2106638995 is an apocalyptic number.

106638995 is a deficient number, since it is larger than the sum of its proper divisors (24786589).

106638995 is an equidigital number, since it uses as much as digits as its factorization.

106638995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576469.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 106638995 is about 10326.6158541896. The cubic root of 106638995 is about 474.2114265660.

The spelling of 106638995 in words is "one hundred six million, six hundred thirty-eight thousand, nine hundred ninety-five".

Divisors: 1 5 37 185 576427 2882135 21327799 106638995