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53144914487 = 710663712007
BaseRepresentation
bin110001011111101011…
…110000101000110111
312002011202112101021012
4301133223300220313
51332320044230422
640225303542435
73560660214440
oct613753605067
9162152471235
1053144914487
11205a1a11935
12a37215aa1b
13501c492482
14280229a2c7
1515b0a114e2
hexc5faf0a37

53144914487 has 8 divisors (see below), whose sum is σ = 60742826496. Its totient is φ = 45548447832.

The previous prime is 53144914481. The next prime is 53144914553. The reversal of 53144914487 is 78441944135.

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

It is a cyclic number.

It is not a de Polignac number, because 53144914487 - 26 = 53144914423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53144914481) 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, 281363 + ... + 430644.

It is an arithmetic number, because the mean of its divisors is an integer number (7592853312).

Almost surely, 253144914487 is an apocalyptic number.

53144914487 is a deficient number, since it is larger than the sum of its proper divisors (7597912009).

53144914487 is a wasteful number, since it uses less digits than its factorization.

53144914487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722677.

The product of its digits is 1935360, while the sum is 50.

The spelling of 53144914487 in words is "fifty-three billion, one hundred forty-four million, nine hundred fourteen thousand, four hundred eighty-seven".

Divisors: 1 7 10663 74641 712007 4984049 7592130641 53144914487