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54931983 = 319963719
BaseRepresentation
bin1101000110001…
…1001000001111
310211100211111220
43101203020033
5103030310413
65241214423
71234625361
oct321431017
9124324456
1054931983
112900a237
1216491413
13b4c4242
14741cd31
154c51223
hex346320f

54931983 has 8 divisors (see below), whose sum is σ = 77097600. Its totient is φ = 34693848.

The previous prime is 54931937. The next prime is 54931991. The reversal of 54931983 is 38913945.

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

It is a de Polignac number, because none of the positive numbers 2k-54931983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54931483) 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, 481803 + ... + 481916.

It is an arithmetic number, because the mean of its divisors is an integer number (9637200).

Almost surely, 254931983 is an apocalyptic number.

54931983 is a deficient number, since it is larger than the sum of its proper divisors (22165617).

54931983 is a wasteful number, since it uses less digits than its factorization.

54931983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963741.

The product of its digits is 116640, while the sum is 42.

The square root of 54931983 is about 7411.6113632597. The cubic root of 54931983 is about 380.1384144889.

The spelling of 54931983 in words is "fifty-four million, nine hundred thirty-one thousand, nine hundred eighty-three".

Divisors: 1 3 19 57 963719 2891157 18310661 54931983