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116899031 = 181645851
BaseRepresentation
bin1101111011110…
…11110011010111
322010222002022202
412331323303113
5214411232111
615333315115
72616424334
oct675736327
9263862282
10116899031
115aa93a77
1233195a9b
131b2ac632
141174d98b
15a3e1b3b
hex6f7bcd7

116899031 has 4 divisors (see below), whose sum is σ = 117545064. Its totient is φ = 116253000.

The previous prime is 116899019. The next prime is 116899037. The reversal of 116899031 is 130998611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130998611 = 373540503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-116899031 is a prime.

It is a super-2 number, since 2×1168990312 = 27330766897477922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116899037) 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, 322745 + ... + 323106.

It is an arithmetic number, because the mean of its divisors is an integer number (29386266).

Almost surely, 2116899031 is an apocalyptic number.

116899031 is a deficient number, since it is larger than the sum of its proper divisors (646033).

116899031 is an equidigital number, since it uses as much as digits as its factorization.

116899031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646032.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 116899031 is about 10811.9855253325. The cubic root of 116899031 is about 488.9565899490.

The spelling of 116899031 in words is "one hundred sixteen million, eight hundred ninety-nine thousand, thirty-one".

Divisors: 1 181 645851 116899031