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31465368 = 233311171941
BaseRepresentation
bin111100000000…
…1111110011000
32012012121101000
41320001332120
531023342433
63042225000
7531310524
oct170017630
965177330
1031465368
1116841440
12a655160
136698c7c
144270d84
152b68113
hex1e01f98

31465368 has 256 divisors, whose sum is σ = 108864000. Its totient is φ = 8294400.

The previous prime is 31465363. The next prime is 31465391. The reversal of 31465368 is 86356413.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31465363) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 767428 + ... + 767468.

It is an arithmetic number, because the mean of its divisors is an integer number (425250).

Almost surely, 231465368 is an apocalyptic number.

31465368 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31465368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54432000).

31465368 is an abundant number, since it is smaller than the sum of its proper divisors (77398632).

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

31465368 is a wasteful number, since it uses less digits than its factorization.

31465368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 93 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 31465368 is about 5609.3999679110. The cubic root of 31465368 is about 315.7021976709.

It can be divided in two parts, 314653 and 68, that added together give a square (314721 = 5612).

The spelling of 31465368 in words is "thirty-one million, four hundred sixty-five thousand, three hundred sixty-eight".