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103431013023 = 31314891781113
BaseRepresentation
bin110000001010011111…
…0000000001010011111
3100212222021200212022010
41200110332000022133
53143311314404043
6115303205322303
710321055050632
oct1402476001237
9325867625263
10103431013023
113a957123a58
1218066a06393
1399a45a3670
1450129c1c19
152a5556b133
hex1814f8029f

103431013023 has 16 divisors (see below), whose sum is σ = 148616152160. Its totient is φ = 63607071744.

The previous prime is 103431012947. The next prime is 103431013027. The reversal of 103431013023 is 320310134301.

It is not a de Polignac number, because 103431013023 - 229 = 102894142111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103431013027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 832486 + ... + 948627.

It is an arithmetic number, because the mean of its divisors is an integer number (9288509510).

Almost surely, 2103431013023 is an apocalyptic number.

103431013023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

103431013023 is a deficient number, since it is larger than the sum of its proper divisors (45185139137).

103431013023 is a wasteful number, since it uses less digits than its factorization.

103431013023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782618.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 103431013023 its reverse (320310134301), we get a palindrome (423741147324).

The spelling of 103431013023 in words is "one hundred three billion, four hundred thirty-one million, thirteen thousand, twenty-three".

Divisors: 1 3 13 39 1489 4467 19357 58071 1781113 5343339 23154469 69463407 2652077257 7956231771 34477004341 103431013023