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55341820 = 2253189261
BaseRepresentation
bin1101001100011…
…1001011111100
310212010122201001
43103013023330
5103131414240
65254100044
71241253262
oct323071374
9125118631
1055341820
112926a146
121664a624
13b608951
1474c8432
154cd289a
hex34c72fc

55341820 has 24 divisors (see below), whose sum is σ = 119968128. Its totient is φ = 21422400.

The previous prime is 55341809. The next prime is 55341821. The reversal of 55341820 is 2814355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55341821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44011 + ... + 45250.

It is an arithmetic number, because the mean of its divisors is an integer number (4998672).

Almost surely, 255341820 is an apocalyptic number.

It is an amenable number.

55341820 is an abundant number, since it is smaller than the sum of its proper divisors (64626308).

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

55341820 is a wasteful number, since it uses less digits than its factorization.

55341820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89301 (or 89299 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 55341820 is about 7439.2082912095. The cubic root of 55341820 is about 381.0814530444.

The spelling of 55341820 in words is "fifty-five million, three hundred forty-one thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 89261 178522 357044 446305 892610 1785220 2767091 5534182 11068364 13835455 27670910 55341820