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55050044 = 2274179607
BaseRepresentation
bin1101000111111…
…1111100111100
310211120211110112
43101333330330
5103043100134
65243525152
71235626520
oct321777474
9124524415
1055050044
112908aa05
12165297b8
13b535bba
14744dd80
154c761ce
hex347ff3c

55050044 has 48 divisors (see below), whose sum is σ = 114401280. Its totient is φ = 22688640.

The previous prime is 55050041. The next prime is 55050067. The reversal of 55050044 is 44005055.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050041) 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, 90389 + ... + 90995.

It is an arithmetic number, because the mean of its divisors is an integer number (2383360).

Almost surely, 255050044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55050044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57200640).

55050044 is an abundant number, since it is smaller than the sum of its proper divisors (59351236).

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

55050044 is a wasteful number, since it uses less digits than its factorization.

55050044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738 (or 736 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 55050044 is about 7419.5716857511. The cubic root of 55050044 is about 380.4105535065.

Adding to 55050044 its reverse (44005055), we get a palindrome (99055099).

The spelling of 55050044 in words is "fifty-five million, fifty thousand, forty-four".

Divisors: 1 2 4 7 14 28 41 79 82 158 164 287 316 553 574 607 1106 1148 1214 2212 2428 3239 4249 6478 8498 12956 16996 22673 24887 45346 47953 49774 90692 95906 99548 174209 191812 335671 348418 671342 696836 1342684 1966073 3932146 7864292 13762511 27525022 55050044