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55248984 = 23327109621
BaseRepresentation
bin1101001011000…
…0100001011000
310211221221100200
43102300201120
5103120431414
65252102200
71240415520
oct322604130
9124857320
1055248984
112920641a
1216604960
13b5a560b
1474a2680
154cb5109
hex34b0858

55248984 has 48 divisors (see below), whose sum is σ = 171010320. Its totient is φ = 15785280.

The previous prime is 55248971. The next prime is 55249003. The reversal of 55248984 is 48984255.

55248984 is a `hidden beast` number, since 552 + 4 + 8 + 98 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54307 + ... + 55314.

It is an arithmetic number, because the mean of its divisors is an integer number (3562715).

Almost surely, 255248984 is an apocalyptic number.

It is an amenable number.

55248984 is an abundant number, since it is smaller than the sum of its proper divisors (115761336).

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

55248984 is a wasteful number, since it uses less digits than its factorization.

55248984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109640 (or 109633 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 55248984 is about 7432.9660297892. The cubic root of 55248984 is about 380.8682455128.

The spelling of 55248984 in words is "fifty-five million, two hundred forty-eight thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 168 252 504 109621 219242 328863 438484 657726 767347 876968 986589 1315452 1534694 1973178 2302041 2630904 3069388 3946356 4604082 6138776 6906123 7892712 9208164 13812246 18416328 27624492 55248984