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55241580 = 22353072999
BaseRepresentation
bin1101001010111…
…0101101101100
310211221120012110
43102232231230
5103120212310
65252004020
71240355112
oct322565554
9124846173
1055241580
11292008a9
1216600610
13b5a2134
14749dab2
154cb2d20
hex34aeb6c

55241580 has 48 divisors (see below), whose sum is σ = 155232000. Its totient is φ = 14678208.

The previous prime is 55241579. The next prime is 55241587. The reversal of 55241580 is 8514255.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (55241587) 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, 16921 + ... + 19919.

It is an arithmetic number, because the mean of its divisors is an integer number (3234000).

Almost surely, 255241580 is an apocalyptic number.

It is an amenable number.

55241580 is an abundant number, since it is smaller than the sum of its proper divisors (99990420).

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

55241580 is a wasteful number, since it uses less digits than its factorization.

55241580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The square root of 55241580 is about 7432.4679615858. The cubic root of 55241580 is about 380.8512311760.

The spelling of 55241580 in words is "fifty-five million, two hundred forty-one thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 307 614 921 1228 1535 1842 2999 3070 3684 4605 5998 6140 8997 9210 11996 14995 17994 18420 29990 35988 44985 59980 89970 179940 920693 1841386 2762079 3682772 4603465 5524158 9206930 11048316 13810395 18413860 27620790 55241580