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53117488389 = 372529404209
BaseRepresentation
bin110001011110000011…
…001000110100000101
312002002211220222201210
4301132003020310011
51332241034112024
640222444042033
73560205126120
oct613603106405
9162084828653
1053117488389
112058848a239
12a364b33319
1350168abc04
1427dc79b3b7
1515ad3e5129
hexc5e0c8d05

53117488389 has 8 divisors (see below), whose sum is σ = 80940934720. Its totient is φ = 30352850496.

The previous prime is 53117488387. The next prime is 53117488421. The reversal of 53117488389 is 98388471135.

It is a happy number.

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

It is not a de Polignac number, because 53117488389 - 21 = 53117488387 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 (53117488387) 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, 1264702084 + ... + 1264702125.

It is an arithmetic number, because the mean of its divisors is an integer number (10117616840).

Almost surely, 253117488389 is an apocalyptic number.

It is an amenable number.

53117488389 is a deficient number, since it is larger than the sum of its proper divisors (27823446331).

53117488389 is a wasteful number, since it uses less digits than its factorization.

53117488389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2529404219.

The product of its digits is 5806080, while the sum is 57.

The spelling of 53117488389 in words is "fifty-three billion, one hundred seventeen million, four hundred eighty-eight thousand, three hundred eighty-nine".

Divisors: 1 3 7 21 2529404209 7588212627 17705829463 53117488389