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131333470 = 2553247799
BaseRepresentation
bin1111101001111…
…11110101011110
3100011010102122121
413310333311132
5232110132340
621010533154
73153213262
oct764776536
9304112577
10131333470
1168152864
1237b971ba
1321294718
141362a0a2
15b7e394a
hex7d3fd5e

131333470 has 16 divisors (see below), whose sum is σ = 240861600. Its totient is φ = 51541984.

The previous prime is 131333443. The next prime is 131333507. The reversal of 131333470 is 74333131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123370 + ... + 124429.

It is an arithmetic number, because the mean of its divisors is an integer number (15053850).

Almost surely, 2131333470 is an apocalyptic number.

131333470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131333470 is a deficient number, since it is larger than the sum of its proper divisors (109528130).

131333470 is a wasteful number, since it uses less digits than its factorization.

131333470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247859.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 131333470 is about 11460.0815878422. The cubic root of 131333470 is about 508.3058871383.

The spelling of 131333470 in words is "one hundred thirty-one million, three hundred thirty-three thousand, four hundred seventy".

Divisors: 1 2 5 10 53 106 265 530 247799 495598 1238995 2477990 13133347 26266694 65666735 131333470