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55093760 = 29521521
BaseRepresentation
bin1101001000101…
…0101000000000
310211200001102122
43102022220000
5103101000020
65244503412
71236201131
oct322125000
9124601378
1055093760
112910a837
121654ab68
13b54ca77
147461c88
154c84125
hex348aa00

55093760 has 40 divisors (see below), whose sum is σ = 132102036. Its totient is φ = 22036480.

The previous prime is 55093751. The next prime is 55093811. The reversal of 55093760 is 6739055.

It can be written as a sum of positive squares in 2 ways, for example, as 54878464 + 215296 = 7408^2 + 464^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 55093760.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8201 + ... + 13320.

Almost surely, 255093760 is an apocalyptic number.

It is an amenable number.

55093760 is an abundant number, since it is smaller than the sum of its proper divisors (77008276).

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

55093760 is an equidigital number, since it uses as much as digits as its factorization.

55093760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21544 (or 21528 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 55093760 is about 7422.5170932777. The cubic root of 55093760 is about 380.5112232877.

The spelling of 55093760 in words is "fifty-five million, ninety-three thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 640 1280 2560 21521 43042 86084 107605 172168 215210 344336 430420 688672 860840 1377344 1721680 2754688 3443360 5509376 6886720 11018752 13773440 27546880 55093760