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8055857831 = 721135315451
BaseRepresentation
bin1111000000010101…
…01010001010100111
3202210102111222102212
413200022222022213
5112444244422311
63411212554035
7403426442660
oct74012521247
922712458385
108055857831
11346435a24a
121689a8291b
139b4c9c8a8
14565c88367
15322380c8b
hex1e02aa2a7

8055857831 has 16 divisors (see below), whose sum is σ = 9277133568. Its totient is φ = 6852384000.

The previous prime is 8055857743. The next prime is 8055857867. The reversal of 8055857831 is 1387585508.

It is a happy number.

It is not a de Polignac number, because 8055857831 - 210 = 8055856807 is a prime.

It is a super-2 number, since 2×80558578312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8055857831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8055857891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513656 + ... + 529106.

It is an arithmetic number, because the mean of its divisors is an integer number (579820848).

Almost surely, 28055857831 is an apocalyptic number.

8055857831 is a deficient number, since it is larger than the sum of its proper divisors (1221275737).

8055857831 is a wasteful number, since it uses less digits than its factorization.

8055857831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022.

The product of its (nonzero) digits is 1344000, while the sum is 50.

The square root of 8055857831 is about 89754.4307040048. The cubic root of 8055857831 is about 2004.6440274082.

The spelling of 8055857831 in words is "eight billion, fifty-five million, eight hundred fifty-seven thousand, eight hundred thirty-one".

Divisors: 1 7 211 353 1477 2471 15451 74483 108157 521381 3260161 5454203 22821127 38179421 1150836833 8055857831