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103916407 = 7219910657
BaseRepresentation
bin1100011000110…
…10001101110111
321020112111111211
412030122031313
5203100311112
614151142251
72401163200
oct614321567
9236474454
10103916407
1153726a31
122a974987
13186b52ca
14db305a7
1591ca0a7
hex631a377

103916407 has 12 divisors (see below), whose sum is σ = 121501200. Its totient is φ = 88615296.

The previous prime is 103916383. The next prime is 103916413. The reversal of 103916407 is 704619301.

It is a happy number.

It is not a de Polignac number, because 103916407 - 215 = 103883639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103916447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4423 + ... + 15079.

It is an arithmetic number, because the mean of its divisors is an integer number (10125100).

Almost surely, 2103916407 is an apocalyptic number.

103916407 is a deficient number, since it is larger than the sum of its proper divisors (17584793).

103916407 is a wasteful number, since it uses less digits than its factorization.

103916407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870 (or 10863 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 103916407 is about 10193.9397192646. The cubic root of 103916407 is about 470.1409068990.

The spelling of 103916407 in words is "one hundred three million, nine hundred sixteen thousand, four hundred seven".

Divisors: 1 7 49 199 1393 9751 10657 74599 522193 2120743 14845201 103916407