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8061445518 = 237480139979
BaseRepresentation
bin1111000000111111…
…11110010110001110
3202210211000212022020
413200133332112032
5113002212224033
63411532431010
7403525104420
oct74037762616
922724025266
108061445518
113467526375
12168b918466
139b61a8009
14566900810
15322ad66b3
hex1e07fe58e

8061445518 has 32 divisors (see below), whose sum is σ = 18430460160. Its totient is φ = 2302732800.

The previous prime is 8061445517. The next prime is 8061445573. The reversal of 8061445518 is 8155441608.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 8061445518.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061445517) 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, 181653 + ... + 221631.

It is an arithmetic number, because the mean of its divisors is an integer number (575951880).

Almost surely, 28061445518 is an apocalyptic number.

8061445518 is an abundant number, since it is smaller than the sum of its proper divisors (10369014642).

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

8061445518 is a wasteful number, since it uses less digits than its factorization.

8061445518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44792.

The product of its (nonzero) digits is 153600, while the sum is 42.

The square root of 8061445518 is about 89785.5529470081. The cubic root of 8061445518 is about 2005.1074059332.

The spelling of 8061445518 in words is "eight billion, sixty-one million, four hundred forty-five thousand, five hundred eighteen".

Divisors: 1 2 3 6 7 14 21 42 4801 9602 14403 28806 33607 39979 67214 79958 100821 119937 201642 239874 279853 559706 839559 1679118 191939179 383878358 575817537 1151635074 1343574253 2687148506 4030722759 8061445518