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1660112147 = 23394718287
BaseRepresentation
bin110001011110011…
…0100110100010011
311021200210102202002
41202330310310103
511344442042042
6432421544215
756065502051
oct14274646423
94250712662
101660112147
117820a9911
123a3b7506b
13205c21aa5
1411a6a11d1
159ab25132
hex62f34d13

1660112147 has 8 divisors (see below), whose sum is σ = 1732824576. Its totient is φ = 1587444232.

The previous prime is 1660112141. The next prime is 1660112173. The reversal of 1660112147 is 7412110661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1660112147 - 214 = 1660095763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1660112141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81638 + ... + 99924.

It is an arithmetic number, because the mean of its divisors is an integer number (216603072).

Almost surely, 21660112147 is an apocalyptic number.

1660112147 is a deficient number, since it is larger than the sum of its proper divisors (72712429).

1660112147 is a wasteful number, since it uses less digits than its factorization.

1660112147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22257.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 1660112147 is about 40744.4738216117. The cubic root of 1660112147 is about 1184.0748110886.

The spelling of 1660112147 in words is "one billion, six hundred sixty million, one hundred twelve thousand, one hundred forty-seven".

Divisors: 1 23 3947 18287 90781 420601 72178789 1660112147