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116103791 = 294003579
BaseRepresentation
bin1101110101110…
…01101001101111
322002110200110102
412322321221233
5214210310131
615304301315
72606603006
oct672715157
9262420412
10116103791
115a5a0551
1232a7183b
131b09168b
14115c3c3d
15a2d61cb
hex6eb9a6f

116103791 has 4 divisors (see below), whose sum is σ = 120107400. Its totient is φ = 112100184.

The previous prime is 116103707. The next prime is 116103809. The reversal of 116103791 is 197301611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 197301611 = 1315177047.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-116103791 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4003579 = 116103791 / (1 + 1 + 6 + 1 + 0 + 3 + 7 + 9 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116103391) 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, 2001761 + ... + 2001818.

It is an arithmetic number, because the mean of its divisors is an integer number (30026850).

Almost surely, 2116103791 is an apocalyptic number.

116103791 is a deficient number, since it is larger than the sum of its proper divisors (4003609).

116103791 is an equidigital number, since it uses as much as digits as its factorization.

116103791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003608.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 116103791 is about 10775.1469131516. The cubic root of 116103791 is about 487.8453092405.

The spelling of 116103791 in words is "one hundred sixteen million, one hundred three thousand, seven hundred ninety-one".

Divisors: 1 29 4003579 116103791