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103918135 = 520783627
BaseRepresentation
bin1100011000110…
…10101000110111
321020112120212211
412030122220313
5203100340020
614151154251
72401201216
oct614325067
9236476784
10103918135
1153728262
122a975987
13186b6029
14db3107d
1591ca85a
hex631aa37

103918135 has 4 divisors (see below), whose sum is σ = 124701768. Its totient is φ = 83134504.

The previous prime is 103918109. The next prime is 103918147. The reversal of 103918135 is 531819301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103918135 - 27 = 103918007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103918097 and 103918106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10391809 + ... + 10391818.

It is an arithmetic number, because the mean of its divisors is an integer number (31175442).

Almost surely, 2103918135 is an apocalyptic number.

103918135 is a deficient number, since it is larger than the sum of its proper divisors (20783633).

103918135 is an equidigital number, since it uses as much as digits as its factorization.

103918135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20783632.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 103918135 is about 10194.0244751521. The cubic root of 103918135 is about 470.1435128365.

The spelling of 103918135 in words is "one hundred three million, nine hundred eighteen thousand, one hundred thirty-five".

Divisors: 1 5 20783627 103918135