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31301310230 = 253130131023
BaseRepresentation
bin11101001001101101…
…000001011100010110
32222210102221022102022
4131021231001130112
51003101113411410
622213555413142
72155450514141
oct351155013426
988712838368
1031301310230
1112302856733
1260968b41b2
132c4ab6b558
14172d1cb058
15c32ec7455
hex749b41716

31301310230 has 8 divisors (see below), whose sum is σ = 56342358432. Its totient is φ = 12520524088.

The previous prime is 31301310191. The next prime is 31301310233. The reversal of 31301310230 is 3201310313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×313013102302 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31301310199 and 31301310208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301310233) 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 3 ways as a sum of consecutive naturals, for example, 1565065502 + ... + 1565065521.

It is an arithmetic number, because the mean of its divisors is an integer number (7042794804).

Almost surely, 231301310230 is an apocalyptic number.

31301310230 is a deficient number, since it is larger than the sum of its proper divisors (25041048202).

31301310230 is a wasteful number, since it uses less digits than its factorization.

31301310230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3130131030.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31301310230 its reverse (3201310313), we get a palindrome (34502620543).

The spelling of 31301310230 in words is "thirty-one billion, three hundred one million, three hundred ten thousand, two hundred thirty".

Divisors: 1 2 5 10 3130131023 6260262046 15650655115 31301310230