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54002628 = 22321500073
BaseRepresentation
bin1100111000000…
…0001111000100
310202121121200100
43032000033010
5102311041003
65205244100
71224005031
oct316001704
9122547610
1054002628
1128534a79
1216103630
13b25a224
14725a388
154b1aba3
hex33803c4

54002628 has 18 divisors (see below), whose sum is σ = 136506734. Its totient is φ = 18000864.

The previous prime is 54002621. The next prime is 54002653. The reversal of 54002628 is 82620045.

It can be written as a sum of positive squares in only one way, i.e., 42224004 + 11778624 = 6498^2 + 3432^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54002621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 750001 + ... + 750072.

Almost surely, 254002628 is an apocalyptic number.

It is an amenable number.

54002628 is an abundant number, since it is smaller than the sum of its proper divisors (82504106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54002628 is a wasteful number, since it uses less digits than its factorization.

54002628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500083 (or 1500078 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 54002628 is about 7348.6480389253. The cubic root of 54002628 is about 377.9824464848.

The spelling of 54002628 in words is "fifty-four million, two thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 1500073 3000146 4500219 6000292 9000438 13500657 18000876 27001314 54002628