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1660131043 = 6179344497
BaseRepresentation
bin110001011110011…
…1001011011100011
311021200211101122221
41202330321123203
511344443143133
6432422211511
756065611124
oct14274713343
94250741587
101660131043
1178211202a
123a3b83b97
13205c2a57c
1411a6a804b
159ab2aa2d
hex62f396e3

1660131043 has 8 divisors (see below), whose sum is σ = 1708710080. Its totient is φ = 1612241280.

The previous prime is 1660131037. The next prime is 1660131089. The reversal of 1660131043 is 3401310661.

It is a happy number.

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 1660131043 - 29 = 1660130531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1660130999 and 1660131017.

It is not an unprimeable number, because it can be changed into a prime (1660137043) 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, 167430 + ... + 177067.

It is an arithmetic number, because the mean of its divisors is an integer number (213588760).

Almost surely, 21660131043 is an apocalyptic number.

1660131043 is a deficient number, since it is larger than the sum of its proper divisors (48579037).

1660131043 is an equidigital number, since it uses as much as digits as its factorization.

1660131043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344637.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1660131043 is about 40744.7057051588. The cubic root of 1660131043 is about 1184.0793035948.

The spelling of 1660131043 in words is "one billion, six hundred sixty million, one hundred thirty-one thousand, forty-three".

Divisors: 1 61 79 4819 344497 21014317 27215263 1660131043