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55830250 = 253761523
BaseRepresentation
bin1101010011111…
…0011011101010
310220001110201001
43110332123222
5103243032000
65312345214
71245356260
oct324763352
9126043631
1055830250
1129573103
121684520a
13b74a068
1475b4430
154d7c46a
hex353e6ea

55830250 has 64 divisors (see below), whose sum is σ = 121635072. Its totient is φ = 18792000.

The previous prime is 55830241. The next prime is 55830263. The reversal of 55830250 is 5203855.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106489 + ... + 107011.

It is an arithmetic number, because the mean of its divisors is an integer number (1900548).

Almost surely, 255830250 is an apocalyptic number.

55830250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55830250 is an abundant number, since it is smaller than the sum of its proper divisors (65804822).

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

55830250 is a wasteful number, since it uses less digits than its factorization.

55830250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 55830250 is about 7471.9642665098. The cubic root of 55830250 is about 382.1992737872.

The spelling of 55830250 in words is "fifty-five million, eight hundred thirty thousand, two hundred fifty".

Divisors: 1 2 5 7 10 14 25 35 50 61 70 122 125 175 250 305 350 427 523 610 854 875 1046 1525 1750 2135 2615 3050 3661 4270 5230 7322 7625 10675 13075 15250 18305 21350 26150 31903 36610 53375 63806 65375 91525 106750 130750 159515 183050 223321 319030 446642 457625 797575 915250 1116605 1595150 2233210 3987875 5583025 7975750 11166050 27915125 55830250