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50018930 = 25132171741
BaseRepresentation
bin1011111011001…
…1101001110010
310111010020001222
42332303221302
5100301101210
64544025042
71145103533
oct276635162
9114106058
1050018930
1126263a65
1214902182
13a493c00
14690068a
1545d0655
hex2fb3a72

50018930 has 48 divisors (see below), whose sum is σ = 103286664. Its totient is φ = 17372160.

The previous prime is 50018873. The next prime is 50018953. The reversal of 50018930 is 3981005.

It can be written as a sum of positive squares in 12 ways, for example, as 4280761 + 45738169 = 2069^2 + 6763^2 .

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 50018930.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27860 + ... + 29600.

Almost surely, 250018930 is an apocalyptic number.

50018930 is an abundant number, since it is smaller than the sum of its proper divisors (53267734).

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

50018930 is a wasteful number, since it uses less digits than its factorization.

50018930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 50018930 is about 7072.4062383322. The cubic root of 50018930 is about 368.4496364754.

Adding to 50018930 its reverse (3981005), we get a palindrome (53999935).

It can be divided in two parts, 5001 and 8930, that added together give a palindrome (13931).

The spelling of 50018930 in words is "fifty million, eighteen thousand, nine hundred thirty".

Divisors: 1 2 5 10 13 17 26 34 65 85 130 169 170 221 338 442 845 1105 1690 1741 2210 2873 3482 5746 8705 14365 17410 22633 28730 29597 45266 59194 113165 147985 226330 294229 295970 384761 588458 769522 1471145 1923805 2942290 3847610 5001893 10003786 25009465 50018930