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103116787 = 122983903
BaseRepresentation
bin1100010010101…
…10111111110011
321012000212122021
412021112333303
5202344214122
614122052311
72361323014
oct611267763
9235025567
10103116787
1153230194
122a64a097
1318495367
14d9a300b
1590bd1c7
hex6256ff3

103116787 has 4 divisors (see below), whose sum is σ = 103201920. Its totient is φ = 103031656.

The previous prime is 103116703. The next prime is 103116799. The reversal of 103116787 is 787611301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 787611301 = 1178966809.

It is a cyclic number.

It is not a de Polignac number, because 103116787 - 219 = 102592499 is a prime.

It is a super-2 number, since 2×1031167872 = 21266143522406738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103116487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40723 + ... + 43180.

It is an arithmetic number, because the mean of its divisors is an integer number (25800480).

Almost surely, 2103116787 is an apocalyptic number.

103116787 is a deficient number, since it is larger than the sum of its proper divisors (85133).

103116787 is an equidigital number, since it uses as much as digits as its factorization.

103116787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85132.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 103116787 is about 10154.6436175771. The cubic root of 103116787 is about 468.9319144120.

The spelling of 103116787 in words is "one hundred three million, one hundred sixteen thousand, seven hundred eighty-seven".

Divisors: 1 1229 83903 103116787