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31300110403 = 37987823969
BaseRepresentation
bin11101001001101000…
…011100100001000011
32222210100200100120021
4131021220130201003
51003100312013103
622213513554311
72155434356122
oct351150344103
988710610507
1031300110403
1112302107241
126096415997
132c4a83b3b3
14172cd97ab9
15c32d3bbbd
hex749a1c843

31300110403 has 4 divisors (see below), whose sum is σ = 31300972360. Its totient is φ = 31299248448.

The previous prime is 31300110367. The next prime is 31300110421. The reversal of 31300110403 is 30401100313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31300110403 is a prime.

It is a super-2 number, since 2×313001104032 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31300110703) 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, 373998 + ... + 449971.

It is an arithmetic number, because the mean of its divisors is an integer number (7825243090).

Almost surely, 231300110403 is an apocalyptic number.

31300110403 is a deficient number, since it is larger than the sum of its proper divisors (861957).

31300110403 is an equidigital number, since it uses as much as digits as its factorization.

31300110403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861956.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31300110403 its reverse (30401100313), we get a palindrome (61701210716).

The spelling of 31300110403 in words is "thirty-one billion, three hundred million, one hundred ten thousand, four hundred three".

Divisors: 1 37987 823969 31300110403