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53348931451 = 208572557843
BaseRepresentation
bin110001101011110110…
…000001011101111011
312002200222102111221001
4301223312001131323
51333224311301301
640301432425431
73566015302204
oct615366013573
9162628374831
1053348931451
11206970988a2
12a40a548277
135052824c7a
1428214065ab
1515c38b0c01
hexc6bd8177b

53348931451 has 4 divisors (see below), whose sum is σ = 53351510152. Its totient is φ = 53346352752.

The previous prime is 53348931437. The next prime is 53348931583. The reversal of 53348931451 is 15413984335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53348931451 - 215 = 53348898683 is a prime.

It is a super-2 number, since 2×533489314512 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53348931431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258065 + ... + 1299778.

It is an arithmetic number, because the mean of its divisors is an integer number (13337877538).

Almost surely, 253348931451 is an apocalyptic number.

53348931451 is a deficient number, since it is larger than the sum of its proper divisors (2578701).

53348931451 is a wasteful number, since it uses less digits than its factorization.

53348931451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2578700.

The product of its digits is 777600, while the sum is 46.

The spelling of 53348931451 in words is "fifty-three billion, three hundred forty-eight million, nine hundred thirty-one thousand, four hundred fifty-one".

Divisors: 1 20857 2557843 53348931451