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54505839 = 3149121937
BaseRepresentation
bin1100111111101…
…1000101101111
310210120011221210
43033323011233
5102423141324
65224125503
71231202103
oct317730557
9123504853
1054505839
1128849053
1216306893
13b3a529b
14734b903
154bb9d29
hex33fb16f

54505839 has 8 divisors (see below), whose sum is σ = 73162800. Its totient is φ = 36093056.

The previous prime is 54505831. The next prime is 54505873. The reversal of 54505839 is 93850545.

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 54505839 - 23 = 54505831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54505797 and 54505806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54505831) 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, 60522 + ... + 61415.

It is an arithmetic number, because the mean of its divisors is an integer number (9145350).

Almost surely, 254505839 is an apocalyptic number.

54505839 is a deficient number, since it is larger than the sum of its proper divisors (18656961).

54505839 is a wasteful number, since it uses less digits than its factorization.

54505839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122089.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 54505839 is about 7382.8069865059. The cubic root of 54505839 is about 379.1528658880.

The spelling of 54505839 in words is "fifty-four million, five hundred five thousand, eight hundred thirty-nine".

Divisors: 1 3 149 447 121937 365811 18168613 54505839