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50020002 = 23216672
BaseRepresentation
bin1011111011001…
…1111010100010
310111010021112200
42332303322202
5100301120002
64544034030
71145106624
oct276637242
9114107480
1050020002
112626484a
1214902916
13a494546
146900c14
1545d0b1c
hex2fb3ea2

50020002 has 18 divisors (see below), whose sum is σ = 108441723. Its totient is φ = 16663332.

The previous prime is 50019971. The next prime is 50020013. The reversal of 50020002 is 20002005.

It can be written as a sum of positive squares in only one way, i.e., 25010001 + 25010001 = 5001^2 + 5001^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅BA, here for A=2, B=5001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 29173 + ... + 30839.

Almost surely, 250020002 is an apocalyptic number.

50020002 is an abundant number, since it is smaller than the sum of its proper divisors (58421721).

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

50020002 is an equidigital number, since it uses as much as digits as its factorization.

50020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3342 (or 1672 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 9.

The square root of 50020002 is about 7072.4820254278. The cubic root of 50020002 is about 368.4522686468.

Adding to 50020002 its reverse (20002005), we get a palindrome (70022007).

It can be divided in two parts, 500 and 20002, that added together give a palindrome (20502).

The spelling of 50020002 in words is "fifty million, twenty thousand, two".

Divisors: 1 2 3 6 9 18 1667 3334 5001 10002 15003 30006 2778889 5557778 8336667 16673334 25010001 50020002