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8257060842 = 235712410117
BaseRepresentation
bin1111011000010100…
…01011111111101010
3210022110010011002020
413230022023333222
5113402301421332
63443201245310
7411421600452
oct75412137752
923273104066
108257060842
113557994028
121725333836
13a17888624
145848a0d62
15334d7682c
hex1ec28bfea

8257060842 has 16 divisors (see below), whose sum is σ = 16543049952. Its totient is φ = 2747532240.

The previous prime is 8257060841. The next prime is 8257060843. The reversal of 8257060842 is 2480607528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8257060841) and next prime (8257060843).

It is a junction number, because it is equal to n+sod(n) for n = 8257060794 and 8257060803.

It is not an unprimeable number, because it can be changed into a prime (8257060841) 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, 1201633 + ... + 1208484.

It is an arithmetic number, because the mean of its divisors is an integer number (1033940622).

Almost surely, 28257060842 is an apocalyptic number.

8257060842 is an abundant number, since it is smaller than the sum of its proper divisors (8285989110).

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

8257060842 is a wasteful number, since it uses less digits than its factorization.

8257060842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410693.

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 8257060842 is about 90868.3709659197. The cubic root of 8257060842 is about 2021.1963016366.

The spelling of 8257060842 in words is "eight billion, two hundred fifty-seven million, sixty thousand, eight hundred forty-two".

Divisors: 1 2 3 6 571 1142 1713 3426 2410117 4820234 7230351 14460702 1376176807 2752353614 4128530421 8257060842