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81460132024 = 2317598971559
BaseRepresentation
bin100101111011101100…
…1101111100010111000
321210021002121110120211
41023313121233202320
52313312243211044
6101231113200504
75612441461165
oct1136731574270
9253232543524
1081460132024
1131602136967
1213954a00134
1378b27a866b
143d2aa6106c
1521bb790634
hex12f766f8b8

81460132024 has 16 divisors (see below), whose sum is σ = 161722321200. Its totient is φ = 38334179712.

The previous prime is 81460132021. The next prime is 81460132027. The reversal of 81460132024 is 42023106418.

It is an interprime number because it is at equal distance from previous prime (81460132021) and next prime (81460132027).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81460132021) 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, 299485644 + ... + 299485915.

It is an arithmetic number, because the mean of its divisors is an integer number (10107645075).

Almost surely, 281460132024 is an apocalyptic number.

It is an amenable number.

81460132024 is a deficient number, since it is larger than the sum of its proper divisors (80262189176).

81460132024 is a wasteful number, since it uses less digits than its factorization.

81460132024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598971582 (or 598971578 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 81460132024 in words is "eighty-one billion, four hundred sixty million, one hundred thirty-two thousand, twenty-four".

Divisors: 1 2 4 8 17 34 68 136 598971559 1197943118 2395886236 4791772472 10182516503 20365033006 40730066012 81460132024