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103016809 = 747521601
BaseRepresentation
bin1100010001111…
…10100101101001
321011211210111101
412020332211221
5202333014214
614120001401
72360425360
oct610764551
9234753441
10103016809
1153172065
122a600261
131845b9bc
14d9787d7
15909d774
hex623e969

103016809 has 16 divisors (see below), whose sum is σ = 120669696. Its totient is φ = 86112000.

The previous prime is 103016807. The next prime is 103016833. The reversal of 103016809 is 908610301.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 103016809 - 21 = 103016807 is a prime.

It is a super-2 number, since 2×1030168092 = 21224925873084962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103016801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171109 + ... + 171709.

It is an arithmetic number, because the mean of its divisors is an integer number (7541856).

Almost surely, 2103016809 is an apocalyptic number.

It is an amenable number.

103016809 is a deficient number, since it is larger than the sum of its proper divisors (17652887).

103016809 is an equidigital number, since it uses as much as digits as its factorization.

103016809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 103016809 is about 10149.7196513007. The cubic root of 103016809 is about 468.7803127301.

The spelling of 103016809 in words is "one hundred three million, sixteen thousand, eight hundred nine".

Divisors: 1 7 47 329 521 601 3647 4207 24487 28247 171409 197729 313121 2191847 14716687 103016809