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50320122320 = 2451348384733
BaseRepresentation
bin101110110111010100…
…000010000111010000
311210212220012001220002
4232313110002013100
51311023422403240
635041114505132
73430656660656
oct566724020720
9153786161802
1050320122320
111a382440756
1299041351a8
13498c194810
142615060dd6
151497a2ad15
hexbb75021d0

50320122320 has 40 divisors (see below), whose sum is σ = 125993847336. Its totient is φ = 18579737088.

The previous prime is 50320122289. The next prime is 50320122397. The reversal of 50320122320 is 2322102305.

It can be written as a sum of positive squares in 4 ways, for example, as 5954282896 + 44365839424 = 77164^2 + 210632^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×503201223202 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 50320122292 and 50320122301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24191327 + ... + 24193406.

Almost surely, 250320122320 is an apocalyptic number.

It is an amenable number.

50320122320 is an abundant number, since it is smaller than the sum of its proper divisors (75673725016).

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

50320122320 is a wasteful number, since it uses less digits than its factorization.

50320122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48384759 (or 48384753 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 50320122320 its reverse (2322102305), we get a palindrome (52642224625).

The spelling of 50320122320 in words is "fifty billion, three hundred twenty million, one hundred twenty-two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 520 1040 48384733 96769466 193538932 241923665 387077864 483847330 629001529 774155728 967694660 1258003058 1935389320 2516006116 3145007645 3870778640 5032012232 6290015290 10064024464 12580030580 25160061160 50320122320