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131660470 = 2513166047
BaseRepresentation
bin1111101100011…
…11101010110110
3100011202001012201
413312033222312
5232201113340
621021535114
73156044524
oct766175266
9304661181
10131660470
1168356507
123811449a
132137a506
14136b3314
15b85a79a
hex7d8fab6

131660470 has 8 divisors (see below), whose sum is σ = 236988864. Its totient is φ = 52664184.

The previous prime is 131660449. The next prime is 131660491. The reversal of 131660470 is 74066131.

It is an interprime number because it is at equal distance from previous prime (131660449) and next prime (131660491).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6583014 + ... + 6583033.

It is an arithmetic number, because the mean of its divisors is an integer number (29623608).

Almost surely, 2131660470 is an apocalyptic number.

131660470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131660470 is a deficient number, since it is larger than the sum of its proper divisors (105328394).

131660470 is a wasteful number, since it uses less digits than its factorization.

131660470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13166054.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 131660470 is about 11474.3396324146. The cubic root of 131660470 is about 508.7274051384.

The spelling of 131660470 in words is "one hundred thirty-one million, six hundred sixty thousand, four hundred seventy".

Divisors: 1 2 5 10 13166047 26332094 65830235 131660470