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5215377531 = 371357133457
BaseRepresentation
bin1001101101101110…
…00101100001111011
3111110110122121222210
410312313011201323
541140114040111
62221303350203
7243145656210
oct46667054173
914413577883
105215377531
112236a43371
121016752363
1365166b310
14376927b07
15207cec0a6
hex136dc587b

5215377531 has 32 divisors (see below), whose sum is σ = 8573813248. Its totient is φ = 2746068480.

The previous prime is 5215377481. The next prime is 5215377577. The reversal of 5215377531 is 1357735125.

It is not a de Polignac number, because 5215377531 - 26 = 5215377467 is a prime.

It is a super-2 number, since 2×52153775312 = 54400325581719311922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 5215377531.

It is not an unprimeable number, because it can be changed into a prime (5215377131) 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 31 ways as a sum of consecutive naturals, for example, 139155 + ... + 172611.

It is an arithmetic number, because the mean of its divisors is an integer number (267931664).

Almost surely, 25215377531 is an apocalyptic number.

5215377531 is a deficient number, since it is larger than the sum of its proper divisors (3358435717).

5215377531 is a wasteful number, since it uses less digits than its factorization.

5215377531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34051.

The product of its digits is 110250, while the sum is 39.

The square root of 5215377531 is about 72217.5707913247. The cubic root of 5215377531 is about 1734.1843016523.

The spelling of 5215377531 in words is "five billion, two hundred fifteen million, three hundred seventy-seven thousand, five hundred thirty-one".

Divisors: 1 3 7 13 21 39 91 273 571 1713 3997 7423 11991 22269 33457 51961 100371 155883 234199 434941 702597 1304823 3044587 9133761 19103947 57311841 133727629 248351311 401182887 745053933 1738459177 5215377531