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50125520 = 2451736857
BaseRepresentation
bin1011111100110…
…1101011010000
310111022122021202
42333031223100
5100313004040
64550210332
71146026354
oct277155320
9114278252
1050125520
1126327055
12149539a8
13a500593
14692b464
154602015
hex2fcdad0

50125520 has 40 divisors (see below), whose sum is σ = 123400584. Its totient is φ = 18870272.

The previous prime is 50125501. The next prime is 50125529. The reversal of 50125520 is 2552105.

It can be written as a sum of positive squares in 4 ways, for example, as 12475024 + 37650496 = 3532^2 + 6136^2 .

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

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 = 50125492 and 50125501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50125529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17069 + ... + 19788.

Almost surely, 250125520 is an apocalyptic number.

It is an amenable number.

50125520 is an abundant number, since it is smaller than the sum of its proper divisors (73275064).

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

50125520 is a wasteful number, since it uses less digits than its factorization.

50125520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36887 (or 36881 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 50125520 is about 7079.9378528346. The cubic root of 50125520 is about 368.7111720105.

Adding to 50125520 its reverse (2552105), we get a palindrome (52677625).

The spelling of 50125520 in words is "fifty million, one hundred twenty-five thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 34 40 68 80 85 136 170 272 340 680 1360 36857 73714 147428 184285 294856 368570 589712 626569 737140 1253138 1474280 2506276 2948560 3132845 5012552 6265690 10025104 12531380 25062760 50125520