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31340213151 = 3132273540067
BaseRepresentation
bin11101001100000001…
…011011001110011111
32222220011010210012020
4131030001123032133
51003141043310101
622221505311223
72156432262552
oct351401331637
988804123166
1031340213151
1112322808005
1260a7935513
132c55c3c930
141734436699
15c3660e136
hex74c05b39f

31340213151 has 16 divisors (see below), whose sum is σ = 45199588224. Its totient is φ = 19201317984.

The previous prime is 31340213141. The next prime is 31340213171. The reversal of 31340213151 is 15131204313.

It is not a de Polignac number, because 31340213151 - 233 = 22750278559 is a prime.

It is a super-2 number, since 2×313402131512 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31340213131) 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 15 ways as a sum of consecutive naturals, for example, 1761181 + ... + 1778886.

It is an arithmetic number, because the mean of its divisors is an integer number (2824974264).

Almost surely, 231340213151 is an apocalyptic number.

31340213151 is a deficient number, since it is larger than the sum of its proper divisors (13859375073).

31340213151 is a wasteful number, since it uses less digits than its factorization.

31340213151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540310.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 31340213151 its reverse (15131204313), we get a palindrome (46471417464).

The spelling of 31340213151 in words is "thirty-one billion, three hundred forty million, two hundred thirteen thousand, one hundred fifty-one".

Divisors: 1 3 13 39 227 681 2951 8853 3540067 10620201 46020871 138062613 803595209 2410785627 10446737717 31340213151