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31120102314 = 2347220312457
BaseRepresentation
bin11100111110111001…
…110001001110101010
32222022210221222220000
4130332321301032222
51002213221233224
622144003443430
72151120335160
oct347671611652
988283858800
1031120102314
111221a539524
126046086576
132c1c463932
1417130db230
15c221310c9
hex73ee713aa

31120102314 has 80 divisors (see below), whose sum is σ = 79736382528. Its totient is φ = 8886708288.

The previous prime is 31120102291. The next prime is 31120102357. The reversal of 31120102314 is 41320102113.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2491974 + ... + 2504430.

Almost surely, 231120102314 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31120102314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39868191264).

31120102314 is an abundant number, since it is smaller than the sum of its proper divisors (48616280214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31120102314 is a wasteful number, since it uses less digits than its factorization.

31120102314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14681 (or 14672 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31120102314 its reverse (41320102113), we get a palindrome (72440204427).

The spelling of 31120102314 in words is "thirty-one billion, one hundred twenty million, one hundred two thousand, three hundred fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 189 378 567 1134 2203 4406 6609 12457 13218 15421 19827 24914 30842 37371 39654 46263 59481 74742 87199 92526 112113 118962 138789 174398 178443 224226 261597 277578 336339 356886 416367 523194 672678 784791 832734 1009017 1249101 1569582 2018034 2354373 2498202 4708746 7063119 14126238 27442771 54885542 82328313 164656626 192099397 246984939 384198794 493969878 576298191 740954817 1152596382 1481909634 1728894573 2222864451 3457789146 4445728902 5186683719 10373367438 15560051157 31120102314