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50249420 = 225131571231
BaseRepresentation
bin1011111110101…
…1111011001100
310111112221020122
42333223323030
5100330440140
64553004112
71150053524
oct277537314
9114487218
1050249420
1126401151
12149b3638
13a544ab0
146960684
154628ab5
hex2febecc

50249420 has 48 divisors (see below), whose sum is σ = 114457728. Its totient is φ = 18420480.

The previous prime is 50249393. The next prime is 50249443. The reversal of 50249420 is 2494205.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 50249420.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40205 + ... + 41435.

It is an arithmetic number, because the mean of its divisors is an integer number (2384536).

Almost surely, 250249420 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 50249420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57228864).

50249420 is an abundant number, since it is smaller than the sum of its proper divisors (64208308).

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

50249420 is a wasteful number, since it uses less digits than its factorization.

50249420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410 (or 1408 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 50249420 is about 7088.6825292151. The cubic root of 50249420 is about 369.0147148359.

The spelling of 50249420 in words is "fifty million, two hundred forty-nine thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 157 260 314 628 785 1231 1570 2041 2462 3140 4082 4924 6155 8164 10205 12310 16003 20410 24620 32006 40820 64012 80015 160030 193267 320060 386534 773068 966335 1932670 2512471 3865340 5024942 10049884 12562355 25124710 50249420