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50238720 = 283257289
BaseRepresentation
bin1011111110100…
…1010100000000
310111112101120100
42333221110000
5100330114340
64552442400
71150010400
oct277512400
9114471510
1050238720
11263a4104
12149a9400
13a53cc6c
14695a800
154625830
hex2fe9500

50238720 has 324 divisors, whose sum is σ = 204471540. Its totient is φ = 11354112.

The previous prime is 50238703. The next prime is 50238731. The reversal of 50238720 is 2783205.

It can be written as a sum of positive squares in 2 ways, for example, as 13660416 + 36578304 = 3696^2 + 6048^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 564436 + ... + 564524.

It is an arithmetic number, because the mean of its divisors is an integer number (631085).

Almost surely, 250238720 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 50238720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102235770).

50238720 is an abundant number, since it is smaller than the sum of its proper divisors (154232820).

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

50238720 is a wasteful number, since it uses less digits than its factorization.

50238720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 50238720 is about 7087.9277648689. The cubic root of 50238720 is about 368.9885205850.

The spelling of 50238720 in words is "fifty million, two hundred thirty-eight thousand, seven hundred twenty".