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54689761 = 719739659
BaseRepresentation
bin1101000010011…
…1111111100001
310210220112020201
43100213333201
5103000033021
65232105201
71232566240
oct320477741
9123815221
1054689761
1128964255
1216395201
13b43ac09
147398957
154c04591
hex3427fe1

54689761 has 8 divisors (see below), whose sum is σ = 62821440. Its totient is φ = 46637808.

The previous prime is 54689753. The next prime is 54689773. The reversal of 54689761 is 16798645.

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

It is not a de Polignac number, because 54689761 - 23 = 54689753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54689711) 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, 18451 + ... + 21208.

It is an arithmetic number, because the mean of its divisors is an integer number (7852680).

Almost surely, 254689761 is an apocalyptic number.

It is an amenable number.

54689761 is a deficient number, since it is larger than the sum of its proper divisors (8131679).

54689761 is a wasteful number, since it uses less digits than its factorization.

54689761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39863.

The product of its digits is 362880, while the sum is 46.

The square root of 54689761 is about 7395.2525987961. The cubic root of 54689761 is about 379.5788524430.

The spelling of 54689761 in words is "fifty-four million, six hundred eighty-nine thousand, seven hundred sixty-one".

Divisors: 1 7 197 1379 39659 277613 7812823 54689761