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31300025113 = 742146123039
BaseRepresentation
bin11101001001101000…
…000111101100011001
32222210100112000120101
4131021220013230121
51003100301300423
622213512055401
72155433552350
oct351150075431
988710460511
1031300025113
1112302059155
126096394561
132c4a80b626
14172cd74997
15c32d217ad
hex749a07b19

31300025113 has 16 divisors (see below), whose sum is σ = 35935764480. Its totient is φ = 26705649600.

The previous prime is 31300025101. The next prime is 31300025131. The reversal of 31300025113 is 31152000313.

It is not a de Polignac number, because 31300025113 - 233 = 22710090521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31300025413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1347048 + ... + 1370086.

It is an arithmetic number, because the mean of its divisors is an integer number (2245985280).

Almost surely, 231300025113 is an apocalyptic number.

It is an amenable number.

31300025113 is a deficient number, since it is larger than the sum of its proper divisors (4635739367).

31300025113 is a wasteful number, since it uses less digits than its factorization.

31300025113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23928.

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 31300025113 its reverse (31152000313), we get a palindrome (62452025426).

The spelling of 31300025113 in words is "thirty-one billion, three hundred million, twenty-five thousand, one hundred thirteen".

Divisors: 1 7 421 461 2947 3227 23039 161273 194081 1358567 9699419 10620979 67895933 74346853 4471432159 31300025113