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55048446 = 23210133019
BaseRepresentation
bin1101000111111…
…1100011111110
310211120202021100
43101333203332
5103043022241
65243513530
71235622045
oct321774376
9124522240
1055048446
1129089792
12165288a6
13b53525b
14744d55c
154c759b6
hex347f8fe

55048446 has 24 divisors (see below), whose sum is σ = 119428920. Its totient is φ = 18325296.

The previous prime is 55048393. The next prime is 55048447. The reversal of 55048446 is 64484055.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55048446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55048447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16725 + ... + 19743.

It is an arithmetic number, because the mean of its divisors is an integer number (4976205).

Almost surely, 255048446 is an apocalyptic number.

55048446 is an abundant number, since it is smaller than the sum of its proper divisors (64380474).

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

55048446 is a wasteful number, since it uses less digits than its factorization.

55048446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The square root of 55048446 is about 7419.4639968127. The cubic root of 55048446 is about 380.4068726015.

The spelling of 55048446 in words is "fifty-five million, forty-eight thousand, four hundred forty-six".

Divisors: 1 2 3 6 9 18 1013 2026 3019 3039 6038 6078 9057 9117 18114 18234 27171 54342 3058247 6116494 9174741 18349482 27524223 55048446