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53321542431 = 3971801101741
BaseRepresentation
bin110001101010001101…
…100010101100011111
312002122001220000020220
4301222031202230133
51333200303324211
640255013412423
73565233426633
oct615215425437
9162561800226
1053321542431
1120682691043
12a40133a113
135049c55551
14281b916dc3
1515c12a0806
hexc6a362b1f

53321542431 has 16 divisors (see below), whose sum is σ = 71868920928. Its totient is φ = 35161344000.

The previous prime is 53321542397. The next prime is 53321542447. The reversal of 53321542431 is 13424512335.

It is not a de Polignac number, because 53321542431 - 214 = 53321526047 is a prime.

It is a super-2 number, since 2×533215424312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53321542392 and 53321542401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53321542451) 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 15 ways as a sum of consecutive naturals, for example, 473221 + ... + 574961.

It is an arithmetic number, because the mean of its divisors is an integer number (4491807558).

Almost surely, 253321542431 is an apocalyptic number.

53321542431 is a deficient number, since it is larger than the sum of its proper divisors (18547378497).

53321542431 is a wasteful number, since it uses less digits than its factorization.

53321542431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103642.

The product of its digits is 43200, while the sum is 33.

The spelling of 53321542431 in words is "fifty-three billion, three hundred twenty-one million, five hundred forty-two thousand, four hundred thirty-one".

Divisors: 1 3 97 291 1801 5403 101741 174697 305223 524091 9868877 29606631 183235541 549706623 17773847477 53321542431