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55080984 = 2337595557
BaseRepresentation
bin1101001000011…
…1100000011000
310211122101220110
43102013200120
5103100042414
65244324320
71236115650
oct322074030
9124571813
1055080984
1129101182
12165436a0
13b546cca
14745b360
154c80459
hex3487818

55080984 has 64 divisors (see below), whose sum is σ = 160070400. Its totient is φ = 15467904.

The previous prime is 55080983. The next prime is 55080989. The reversal of 55080984 is 48908055.

It is a super-3 number, since 3×550809843 (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55080983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7134 + ... + 12690.

It is an arithmetic number, because the mean of its divisors is an integer number (2501100).

Almost surely, 255080984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55080984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80035200).

55080984 is an abundant number, since it is smaller than the sum of its proper divisors (104989416).

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

55080984 is a wasteful number, since it uses less digits than its factorization.

55080984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5632 (or 5628 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 55080984 is about 7421.6564188866. The cubic root of 55080984 is about 380.4818080556.

The spelling of 55080984 in words is "fifty-five million, eighty thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 7 8 12 14 21 24 28 42 56 59 84 118 168 177 236 354 413 472 708 826 1239 1416 1652 2478 3304 4956 5557 9912 11114 16671 22228 33342 38899 44456 66684 77798 116697 133368 155596 233394 311192 327863 466788 655726 933576 983589 1311452 1967178 2295041 2622904 3934356 4590082 6885123 7868712 9180164 13770246 18360328 27540492 55080984