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5402512531 = 135956312511
BaseRepresentation
bin1010000100000001…
…11100110010010011
3111221111210001221201
411002000330302103
542031020400111
62252030332031
7250610412253
oct50200746223
914844701851
105402512531
112322639699
12106935a017
1368136c9a0
1439371b963
152194646c1
hex14203cc93

5402512531 has 16 divisors (see below), whose sum is σ = 5927685120. Its totient is φ = 4893311520.

The previous prime is 5402512529. The next prime is 5402512541. The reversal of 5402512531 is 1352152045.

It is a cyclic number.

It is not a de Polignac number, because 5402512531 - 21 = 5402512529 is a prime.

It is a super-2 number, since 2×54025125312 = 58374283295224051922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5402512531.

It is not an unprimeable number, because it can be changed into a prime (5402512541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425566 + ... + 438076.

It is an arithmetic number, because the mean of its divisors is an integer number (370480320).

Almost surely, 25402512531 is an apocalyptic number.

5402512531 is a deficient number, since it is larger than the sum of its proper divisors (525172589).

5402512531 is a wasteful number, since it uses less digits than its factorization.

5402512531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13146.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 5402512531 is about 73501.7859034731. The cubic root of 5402512531 is about 1754.6827001898.

Adding to 5402512531 its reverse (1352152045), we get a palindrome (6754664576).

The spelling of 5402512531 in words is "five billion, four hundred two million, five hundred twelve thousand, five hundred thirty-one".

Divisors: 1 13 59 563 767 7319 12511 33217 162643 431821 738149 7043693 9595937 91568009 415577887 5402512531