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50123434420 = 2252506171721
BaseRepresentation
bin101110101011100101…
…101110100110110100
311210101012002021211001
4232223211232212310
51310123044400140
635005411053044
73423051106603
oct565345564664
9153335067731
1050123434420
111a291410174
12986a2a1184
13495a4c9c47
1425d6ca1a3a
151485627e9a
hexbab96e9b4

50123434420 has 12 divisors (see below), whose sum is σ = 105259212324. Its totient is φ = 20049373760.

The previous prime is 50123434373. The next prime is 50123434421. The reversal of 50123434420 is 2443432105.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21296148624 + 28827285796 = 145932^2 + 169786^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50123434421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1253085841 + ... + 1253085880.

It is an arithmetic number, because the mean of its divisors is an integer number (8771601027).

Almost surely, 250123434420 is an apocalyptic number.

It is an amenable number.

50123434420 is an abundant number, since it is smaller than the sum of its proper divisors (55135777904).

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

50123434420 is a wasteful number, since it uses less digits than its factorization.

50123434420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506171730 (or 2506171728 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 50123434420 its reverse (2443432105), we get a palindrome (52566866525).

The spelling of 50123434420 in words is "fifty billion, one hundred twenty-three million, four hundred thirty-four thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 2506171721 5012343442 10024686884 12530858605 25061717210 50123434420