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5151660493 = 72028736277
BaseRepresentation
bin1001100110001000…
…00001100111001101
3111022000202110122111
410303010001213031
541022311113433
62211105544021
7241443251230
oct46304014715
914260673574
105151660493
112203a83861
12bb9345011
136413bc525
1436c29d417
15202412dcd
hex1331019cd

5151660493 has 8 divisors (see below), whose sum is σ = 5888064512. Its totient is φ = 4415369616.

The previous prime is 5151660491. The next prime is 5151660533. The reversal of 5151660493 is 3940661515.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5151660493 - 21 = 5151660491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5151660491) 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, 123871 + ... + 160147.

It is an arithmetic number, because the mean of its divisors is an integer number (736008064).

Almost surely, 25151660493 is an apocalyptic number.

It is an amenable number.

5151660493 is a deficient number, since it is larger than the sum of its proper divisors (736404019).

5151660493 is a wasteful number, since it uses less digits than its factorization.

5151660493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56571.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 5151660493 is about 71775.0687425655. The cubic root of 5151660493 is about 1727.0930826500.

The spelling of 5151660493 in words is "five billion, one hundred fifty-one million, six hundred sixty thousand, four hundred ninety-three".

Divisors: 1 7 20287 36277 142009 253939 735951499 5151660493