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5180220815 = 571110121319
BaseRepresentation
bin1001101001100001…
…11110010110001111
3111101000111111001012
410310300332112033
541102114031230
62214010035435
7242241102410
oct46460762617
914330444035
105180220815
112219110630
121006a18b7b
136472ac123
14371db5807
15204ba5395
hex134c3e58f

5180220815 has 48 divisors (see below), whose sum is σ = 7833576960. Its totient is φ = 3194832000.

The previous prime is 5180220767. The next prime is 5180220821.

It is a happy number.

5180220815 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5180220815 - 26 = 5180220751 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3926726 + ... + 3928044.

It is an arithmetic number, because the mean of its divisors is an integer number (163199520).

Almost surely, 25180220815 is an apocalyptic number.

5180220815 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5180220815 is a deficient number, since it is larger than the sum of its proper divisors (2653356145).

5180220815 is a wasteful number, since it uses less digits than its factorization.

5180220815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1443 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 5180220815 is about 71973.7508748849. The cubic root of 5180220815 is about 1730.2788167011.

The spelling of 5180220815 in words is "five billion, one hundred eighty million, two hundred twenty thousand, eight hundred fifteen".

Divisors: 1 5 7 11 35 55 77 101 385 505 707 1111 1319 3535 5555 6595 7777 9233 10201 14509 38885 46165 51005 71407 72545 101563 112211 133219 357035 507815 561055 666095 785477 932533 1465409 3927385 4662665 7327045 10257863 13455119 51289315 67275595 94185833 148006309 470929165 740031545 1036044163 5180220815