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31341168188 = 22115383161923
BaseRepresentation
bin11101001100000101…
…000100011000111100
32222220012221022020222
4131030011010120330
51003141314340223
622221542000512
72156443351121
oct351405043074
988805838228
1031341168188
11123232aa5a0
1260a8116138
132c561b5545
141734604748
15c3674c0c8
hex74c14463c

31341168188 has 48 divisors (see below), whose sum is σ = 61696930176. Its totient is φ = 13808708160.

The previous prime is 31341168169. The next prime is 31341168251. The reversal of 31341168188 is 88186114313.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112595 + ... + 274517.

It is an arithmetic number, because the mean of its divisors is an integer number (1285352712).

Almost surely, 231341168188 is an apocalyptic number.

It is an amenable number.

31341168188 is a deficient number, since it is larger than the sum of its proper divisors (30355761988).

31341168188 is a wasteful number, since it uses less digits than its factorization.

31341168188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162074 (or 162072 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The spelling of 31341168188 in words is "thirty-one billion, three hundred forty-one million, one hundred sixty-eight thousand, one hundred eighty-eight".

Divisors: 1 2 4 11 22 44 53 83 106 166 212 332 583 913 1166 1826 2332 3652 4399 8798 17596 48389 96778 161923 193556 323846 647692 1781153 3562306 7124612 8581919 13439609 17163838 26879218 34327676 53758436 94401109 147835699 188802218 295671398 377604436 591342796 712299277 1424598554 2849197108 7835292047 15670584094 31341168188