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54004945 = 531348419
BaseRepresentation
bin1100111000000…
…0110011010001
310202121201212011
43032000303101
5102311124240
65205302521
71224014551
oct316006321
9122551764
1054004945
1128536795
1216104a41
13b25b2b7
14725b161
154b1b6ea
hex3380cd1

54004945 has 8 divisors (see below), whose sum is σ = 66896640. Its totient is φ = 41810160.

The previous prime is 54004921. The next prime is 54004957. The reversal of 54004945 is 54940045.

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-54004945 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174055 + ... + 174364.

It is an arithmetic number, because the mean of its divisors is an integer number (8362080).

Almost surely, 254004945 is an apocalyptic number.

It is an amenable number.

54004945 is a deficient number, since it is larger than the sum of its proper divisors (12891695).

54004945 is a wasteful number, since it uses less digits than its factorization.

54004945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348455.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 54004945 is about 7348.8056852798. The cubic root of 54004945 is about 377.9878522267.

The spelling of 54004945 in words is "fifty-four million, four thousand, nine hundred forty-five".

Divisors: 1 5 31 155 348419 1742095 10800989 54004945