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102018806 = 2109746499
BaseRepresentation
bin1100001010010…
…10111011110110
321002222002111022
412011022323312
5202104100211
614042341142
72346100631
oct605127366
9232862438
10102018806
115265026a
122a1ba7b2
131819c676
14d798c18
158e52bdb
hex614aef6

102018806 has 8 divisors (see below), whose sum is σ = 153171000. Its totient is φ = 50961808.

The previous prime is 102018803. The next prime is 102018827. The reversal of 102018806 is 608810201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102018803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21056 + ... + 25443.

It is an arithmetic number, because the mean of its divisors is an integer number (19146375).

Almost surely, 2102018806 is an apocalyptic number.

102018806 is a deficient number, since it is larger than the sum of its proper divisors (51152194).

102018806 is a wasteful number, since it uses less digits than its factorization.

102018806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47598.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 102018806 is about 10100.4359311863. The cubic root of 102018806 is about 467.2615860429.

The spelling of 102018806 in words is "one hundred two million, eighteen thousand, eight hundred six".

Divisors: 1 2 1097 2194 46499 92998 51009403 102018806