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54953691 = 3131409069
BaseRepresentation
bin1101000110100…
…0011011011011
310211101221021220
43101220123123
5103032004231
65241503123
71235045562
oct321503333
9124357256
1054953691
1129024581
12164a1aa3
13b5010a0
147426bd9
154c57896
hex34686db

54953691 has 8 divisors (see below), whose sum is σ = 78907920. Its totient is φ = 33817632.

The previous prime is 54953687. The next prime is 54953711. The reversal of 54953691 is 19635945.

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

It is not a de Polignac number, because 54953691 - 22 = 54953687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54253691) 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, 704496 + ... + 704573.

It is an arithmetic number, because the mean of its divisors is an integer number (9863490).

Almost surely, 254953691 is an apocalyptic number.

54953691 is a deficient number, since it is larger than the sum of its proper divisors (23954229).

54953691 is a wasteful number, since it uses less digits than its factorization.

54953691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409085.

The product of its digits is 145800, while the sum is 42.

The square root of 54953691 is about 7413.0756774769. The cubic root of 54953691 is about 380.1884822119.

The spelling of 54953691 in words is "fifty-four million, nine hundred fifty-three thousand, six hundred ninety-one".

Divisors: 1 3 13 39 1409069 4227207 18317897 54953691