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53013343431 = 322807774811
BaseRepresentation
bin110001010111110101…
…110110110011000111
312001211120221212201010
4301113311312303013
51332032403442211
640204243533303
73554501661366
oct612765666307
9161746855633
1053013343431
1120534717624
12a33608a233
134ccb146889
1427cca0b7dd
1515a41c24a6
hexc57d76cc7

53013343431 has 8 divisors (see below), whose sum is σ = 70687648384. Its totient is φ = 35340633720.

The previous prime is 53013343429. The next prime is 53013343433. The reversal of 53013343431 is 13434331035.

It is an interprime number because it is at equal distance from previous prime (53013343429) and next prime (53013343433).

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

It is not a de Polignac number, because 53013343431 - 21 = 53013343429 is a prime.

It is a super-2 number, since 2×530133434312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53013343433) 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, 318985 + ... + 455826.

It is an arithmetic number, because the mean of its divisors is an integer number (8835956048).

Almost surely, 253013343431 is an apocalyptic number.

53013343431 is a deficient number, since it is larger than the sum of its proper divisors (17674304953).

53013343431 is a wasteful number, since it uses less digits than its factorization.

53013343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797621.

The product of its (nonzero) digits is 19440, while the sum is 30.

Adding to 53013343431 its reverse (13434331035), we get a palindrome (66447674466).

The spelling of 53013343431 in words is "fifty-three billion, thirteen million, three hundred forty-three thousand, four hundred thirty-one".

Divisors: 1 3 22807 68421 774811 2324433 17671114477 53013343431