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2497392031 = 11292212039
BaseRepresentation
bin1001010011011011…
…0010110110011111
320110001021122211011
42110312302312133
520103313021111
61051451440051
7115613324221
oct22466626637
96401248734
102497392031
111071792662
12598456027
1330a528384
14199972411
15e93b3021
hex94db2d9f

2497392031 has 4 divisors (see below), whose sum is σ = 2499605200. Its totient is φ = 2495178864.

The previous prime is 2497391989. The next prime is 2497392109. The reversal of 2497392031 is 1302937942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1302937942 = 2651468971.

It is a cyclic number.

It is not a de Polignac number, because 2497392031 - 27 = 2497391903 is a prime.

It is a super-2 number, since 2×24973920312 = 12473933913004609922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2497392431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104891 + ... + 1107148.

It is an arithmetic number, because the mean of its divisors is an integer number (624901300).

Almost surely, 22497392031 is an apocalyptic number.

2497392031 is a deficient number, since it is larger than the sum of its proper divisors (2213169).

2497392031 is a wasteful number, since it uses less digits than its factorization.

2497392031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213168.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 2497392031 is about 49973.9135049478. The cubic root of 2497392031 is about 1356.7367029614.

The spelling of 2497392031 in words is "two billion, four hundred ninety-seven million, three hundred ninety-two thousand, thirty-one".

Divisors: 1 1129 2212039 2497392031