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31368227704 = 23117114713413
BaseRepresentation
bin11101001101101100…
…010010101101111000
32222222002212001221021
4131031230102231320
51003220231241304
622224345552224
72160222351622
oct351554225570
988862761837
1031368227704
1112337601830
1260b51a5674
132c5b99aca8
141738049c12
15c38ce4a54
hex74db12b78

31368227704 has 64 divisors (see below), whose sum is σ = 65129287680. Its totient is φ = 14043792000.

The previous prime is 31368227689. The next prime is 31368227711. The reversal of 31368227704 is 40772286313.

It is a super-2 number, since 2×313682277042 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 9189102 + ... + 9192514.

It is an arithmetic number, because the mean of its divisors is an integer number (1017645120).

Almost surely, 231368227704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31368227704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32564643840).

31368227704 is an abundant number, since it is smaller than the sum of its proper divisors (33761059976).

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

31368227704 is a wasteful number, since it uses less digits than its factorization.

31368227704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4972 (or 4968 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 31368227704 in words is "thirty-one billion, three hundred sixty-eight million, two hundred twenty-seven thousand, seven hundred four".

Divisors: 1 2 4 8 11 22 44 71 88 142 284 568 781 1471 1562 2942 3124 3413 5884 6248 6826 11768 13652 16181 27304 32362 37543 64724 75086 104441 129448 150172 208882 242323 300344 417764 484646 835528 969292 1148851 1938584 2297702 2665553 4595404 5020523 5331106 9190808 10041046 10662212 20082092 21324424 40164184 55225753 110451506 220903012 356457133 441806024 712914266 1425828532 2851657064 3921028463 7842056926 15684113852 31368227704