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55049300 = 2252737541
BaseRepresentation
bin1101000111111…
…1110001010100
310211120210102222
43101333301110
5103043034200
65243521512
71235624405
oct321776124
9124523388
1055049300
112908a399
1216529298
13b535767
14744d9ac
154c75d85
hex347fc54

55049300 has 36 divisors (see below), whose sum is σ = 121109436. Its totient is φ = 21715200.

The previous prime is 55049263. The next prime is 55049317. The reversal of 55049300 is 394055.

It can be written as a sum of positive squares in 6 ways, for example, as 5740816 + 49308484 = 2396^2 + 7022^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55049300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3530 + ... + 11070.

It is an arithmetic number, because the mean of its divisors is an integer number (3364151).

Almost surely, 255049300 is an apocalyptic number.

55049300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55049300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60554718).

55049300 is an abundant number, since it is smaller than the sum of its proper divisors (66060136).

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

55049300 is a wasteful number, since it uses less digits than its factorization.

55049300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7628 (or 7621 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 55049300 is about 7419.5215479167. The cubic root of 55049300 is about 380.4088397524.

The spelling of 55049300 in words is "fifty-five million, forty-nine thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 73 100 146 292 365 730 1460 1825 3650 7300 7541 15082 30164 37705 75410 150820 188525 377050 550493 754100 1100986 2201972 2752465 5504930 11009860 13762325 27524650 55049300