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82868412 = 22311627791
BaseRepresentation
bin1001111000001…
…11100010111100
312202221011002110
410330013202330
5132203242122
612120054020
72024240604
oct474074274
9182834073
1082868412
11428602a0
1223904310
1314225b83
14b011c04
15741d90c
hex4f078bc

82868412 has 24 divisors (see below), whose sum is σ = 210938112. Its totient is φ = 25111600.

The previous prime is 82868381. The next prime is 82868413. The reversal of 82868412 is 21486828.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82868413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313764 + ... + 314027.

It is an arithmetic number, because the mean of its divisors is an integer number (8789088).

Almost surely, 282868412 is an apocalyptic number.

It is an amenable number.

82868412 is an abundant number, since it is smaller than the sum of its proper divisors (128069700).

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

82868412 is a wasteful number, since it uses less digits than its factorization.

82868412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627809 (or 627807 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 82868412 is about 9103.2088847834. The cubic root of 82868412 is about 435.9764246714.

The spelling of 82868412 in words is "eighty-two million, eight hundred sixty-eight thousand, four hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 627791 1255582 1883373 2511164 3766746 6905701 7533492 13811402 20717103 27622804 41434206 82868412