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54785431 = 677871039
BaseRepresentation
bin1101000011111…
…1010110010111
310211002101111001
43100333112113
5103011113211
65234124131
71233445201
oct320772627
9124071431
1054785431
1128a1a118
1216420647
13b47261c
1473c1771
154c22ac1
hex343f597

54785431 has 8 divisors (see below), whose sum is σ = 55727360. Its totient is φ = 53847288.

The previous prime is 54785399. The next prime is 54785443. The reversal of 54785431 is 13458745.

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 54785431 - 25 = 54785399 is a prime.

It is a super-2 number, since 2×547854312 = 6002886899711522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54785231) 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, 52210 + ... + 53248.

It is an arithmetic number, because the mean of its divisors is an integer number (6965920).

Almost surely, 254785431 is an apocalyptic number.

54785431 is a deficient number, since it is larger than the sum of its proper divisors (941929).

54785431 is a wasteful number, since it uses less digits than its factorization.

54785431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893.

The product of its digits is 67200, while the sum is 37.

The square root of 54785431 is about 7401.7181113577. The cubic root of 54785431 is about 379.8000587137.

The spelling of 54785431 in words is "fifty-four million, seven hundred eighty-five thousand, four hundred thirty-one".

Divisors: 1 67 787 1039 52729 69613 817693 54785431