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31463068 = 22713261109
BaseRepresentation
bin111100000000…
…1011010011100
32012012111012211
41320001122130
531023304233
63042210204
7531301030
oct170013234
965174184
1031463068
111683a73a
12a653964
136697c00
1442701c0
152b675cd
hex1e0169c

31463068 has 72 divisors (see below), whose sum is σ = 69891360. Its totient is φ = 12130560.

The previous prime is 31463063. The next prime is 31463077. The reversal of 31463068 is 86036413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31463063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288598 + ... + 288706.

Almost surely, 231463068 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 31463068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34945680).

31463068 is an abundant number, since it is smaller than the sum of its proper divisors (38428292).

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

31463068 is a wasteful number, since it uses less digits than its factorization.

31463068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 31463068 is about 5609.1949511494. The cubic root of 31463068 is about 315.6945052692.

The spelling of 31463068 in words is "thirty-one million, four hundred sixty-three thousand, sixty-eight".

Divisors: 1 2 4 7 13 14 26 28 52 61 91 109 122 169 182 218 244 338 364 427 436 676 763 793 854 1183 1417 1526 1586 1708 2366 2834 3052 3172 4732 5551 5668 6649 9919 10309 11102 13298 18421 19838 20618 22204 26596 36842 39676 41236 46543 72163 73684 86437 93086 128947 144326 172874 186172 257894 288652 345748 515788 605059 1123681 1210118 2247362 2420236 4494724 7865767 15731534 31463068