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5131143551 = 157178718289
BaseRepresentation
bin1001100011101011…
…10000100101111111
3111020121011002200202
410301311300211333
541002033043201
62205054114115
7241104000122
oct46165604577
914217132622
105131143551
1121a3440106
12bb24ab93b
1363a087a21
1436967c3b9
1520070dc6b
hex131d7097f

5131143551 has 8 divisors (see below), whose sum is σ = 5166998160. Its totient is φ = 5095329408.

The previous prime is 5131143547. The next prime is 5131143557. The reversal of 5131143551 is 1553411315.

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

It is a cyclic number.

It is not a de Polignac number, because 5131143551 - 22 = 5131143547 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 (5131143557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271415 + ... + 289703.

It is an arithmetic number, because the mean of its divisors is an integer number (645874770).

Almost surely, 25131143551 is an apocalyptic number.

5131143551 is a deficient number, since it is larger than the sum of its proper divisors (35854609).

5131143551 is a wasteful number, since it uses less digits than its factorization.

5131143551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20233.

The product of its digits is 4500, while the sum is 29.

The square root of 5131143551 is about 71632.0008864753. Note that the first 3 decimals coincide. The cubic root of 5131143551 is about 1724.7972653710.

Adding to 5131143551 its reverse (1553411315), we get a palindrome (6684554866).

The spelling of 5131143551 in words is "five billion, one hundred thirty-one million, one hundred forty-three thousand, five hundred fifty-one".

Divisors: 1 157 1787 18289 280559 2871373 32682443 5131143551