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55104864 = 2531930211
BaseRepresentation
bin1101001000110…
…1010101100000
310211200121122220
43102031111200
5103101323424
65245031040
71236245403
oct322152540
9124617586
1055104864
1129118111
1216555480
13b554b39
147465d3a
154c87579
hex348d560

55104864 has 48 divisors (see below), whose sum is σ = 152268480. Its totient is φ = 17400960.

The previous prime is 55104859. The next prime is 55104913. The reversal of 55104864 is 46840155.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 13282 + ... + 16929.

It is an arithmetic number, because the mean of its divisors is an integer number (3172260).

Almost surely, 255104864 is an apocalyptic number.

It is an amenable number.

55104864 is an abundant number, since it is smaller than the sum of its proper divisors (97163616).

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

55104864 is a wasteful number, since it uses less digits than its factorization.

55104864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30243 (or 30235 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 55104864 is about 7423.2650498281. The cubic root of 55104864 is about 380.5367852437.

The spelling of 55104864 in words is "fifty-five million, one hundred four thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 19 24 32 38 48 57 76 96 114 152 228 304 456 608 912 1824 30211 60422 90633 120844 181266 241688 362532 483376 574009 725064 966752 1148018 1450128 1722027 2296036 2900256 3444054 4592072 6888108 9184144 13776216 18368288 27552432 55104864