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31486714 = 2747983
BaseRepresentation
bin111100000011…
…1001011111010
32012020200122121
41320013023322
531030033324
63042511454
7531430000
oct170071372
965220577
1031486714
1116856486
12a66558a
1366a58bc
144278a70
152b6e5e4
hex1e072fa

31486714 has 40 divisors (see below), whose sum is σ = 56468160. Its totient is φ = 13162968.

The previous prime is 31486711. The next prime is 31486723. The reversal of 31486714 is 41768413.

It is a happy number.

Its product of digits (16128) is a multiple of the sum of its prime factors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 31486714.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31486711) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 379317 + ... + 379399.

It is an arithmetic number, because the mean of its divisors is an integer number (1411704).

Almost surely, 231486714 is an apocalyptic number.

31486714 is a deficient number, since it is larger than the sum of its proper divisors (24981446).

31486714 is an frugal number, since it uses more digits than its factorization.

31486714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 171 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 31486714 is about 5611.3023443760. The cubic root of 31486714 is about 315.7735719702.

The spelling of 31486714 in words is "thirty-one million, four hundred eighty-six thousand, seven hundred fourteen".

Divisors: 1 2 7 14 49 79 83 98 158 166 343 553 581 686 1106 1162 2401 3871 4067 4802 6557 7742 8134 13114 27097 28469 45899 54194 56938 91798 189679 199283 321293 379358 398566 642586 2249051 4498102 15743357 31486714