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5118993108 = 2232787318061
BaseRepresentation
bin1001100010001110…
…11010001011010100
3111012202021210102100
410301013122023110
540440430234413
62203541442100
7240565503105
oct46107321324
914182253370
105118993108
1121975a1319
12baa410330
136376c2408
14367bd83ac
151ee60da73
hex1311da2d4

5118993108 has 36 divisors (see below), whose sum is σ = 12942037108. Its totient is φ = 1706019840.

The previous prime is 5118993107. The next prime is 5118993151. The reversal of 5118993108 is 8013998115.

It can be written as a sum of positive squares in 2 ways, for example, as 1865203344 + 3253789764 = 43188^2 + 57042^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5118993107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274398 + ... + 292458.

Almost surely, 25118993108 is an apocalyptic number.

It is an amenable number.

5118993108 is an abundant number, since it is smaller than the sum of its proper divisors (7823044000).

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

5118993108 is a wasteful number, since it uses less digits than its factorization.

5118993108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25944 (or 25939 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 45.

The square root of 5118993108 is about 71547.1390622993. The cubic root of 5118993108 is about 1723.4347611259.

The spelling of 5118993108 in words is "five billion, one hundred eighteen million, nine hundred ninety-three thousand, one hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 7873 15746 18061 23619 31492 36122 47238 54183 70857 72244 94476 108366 141714 162549 216732 283428 325098 650196 142194253 284388506 426582759 568777012 853165518 1279748277 1706331036 2559496554 5118993108