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54634681 = 376722039
BaseRepresentation
bin1101000001101…
…0100010111001
310210210201200201
43100122202321
5102441302211
65231002201
71232246533
oct320324271
9123721621
1054634681
1128926932
1216369361
13b41bb1a
147382853
154be30c1
hex341a8b9

54634681 has 8 divisors (see below), whose sum is σ = 56951360. Its totient is φ = 52362288.

The previous prime is 54634663. The next prime is 54634687. The reversal of 54634681 is 18643645.

It is a happy number.

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 54634681 - 225 = 21080249 is a prime.

It is a super-3 number, since 3×546346813 (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54634681.

It is not an unprimeable number, because it can be changed into a prime (54634687) 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, 8541 + ... + 13498.

It is an arithmetic number, because the mean of its divisors is an integer number (7118920).

Almost surely, 254634681 is an apocalyptic number.

It is an amenable number.

54634681 is a deficient number, since it is larger than the sum of its proper divisors (2316679).

54634681 is a wasteful number, since it uses less digits than its factorization.

54634681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22143.

The product of its digits is 69120, while the sum is 37.

The square root of 54634681 is about 7391.5276499517. The cubic root of 54634681 is about 379.4513805266.

The spelling of 54634681 in words is "fifty-four million, six hundred thirty-four thousand, six hundred eighty-one".

Divisors: 1 37 67 2479 22039 815443 1476613 54634681