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116631047 = 138971619
BaseRepresentation
bin1101111001110…
…10011000000111
322010110110201102
412330322120013
5214324143142
615323450315
72614230131
oct674723007
9263413642
10116631047
115a9206a5
123308699b
131b217670
14116c0051
15a38c532
hex6f3a607

116631047 has 4 divisors (see below), whose sum is σ = 125602680. Its totient is φ = 107659416.

The previous prime is 116631043. The next prime is 116631071. The reversal of 116631047 is 740136611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740136611 = 1030371837.

It is a cyclic number.

It is not a de Polignac number, because 116631047 - 22 = 116631043 is a prime.

It is a super-2 number, since 2×1166310472 = 27205602248632418, 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 (116631043) 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, 4485797 + ... + 4485822.

It is an arithmetic number, because the mean of its divisors is an integer number (31400670).

Almost surely, 2116631047 is an apocalyptic number.

116631047 is a deficient number, since it is larger than the sum of its proper divisors (8971633).

116631047 is an equidigital number, since it uses as much as digits as its factorization.

116631047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971632.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 116631047 is about 10799.5855013051. The cubic root of 116631047 is about 488.5826695453.

Adding to 116631047 its reverse (740136611), we get a palindrome (856767658).

The spelling of 116631047 in words is "one hundred sixteen million, six hundred thirty-one thousand, forty-seven".

Divisors: 1 13 8971619 116631047