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50312130000 = 2435411152461
BaseRepresentation
bin101110110110110101…
…100010110111010000
311210212100011000111020
4232312311202313100
51311014401130000
635040231315440
73430532022516
oct566665426720
9153770130436
1050312130000
111a378981a30
12990151bb80
13498a626a32
142613d804b6
151496e9cba0
hexbb6d62dd0

50312130000 has 200 divisors, whose sum is σ = 177180359136. Its totient is φ = 12196800000.

The previous prime is 50312129977. The next prime is 50312130007. The reversal of 50312130000 is 3121305.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50312130007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 253770 + ... + 406230.

Almost surely, 250312130000 is an apocalyptic number.

50312130000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50312130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88590179568).

50312130000 is an abundant number, since it is smaller than the sum of its proper divisors (126868229136).

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

50312130000 is a wasteful number, since it uses less digits than its factorization.

50312130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152503 (or 152482 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

Adding to 50312130000 its reverse (3121305), we get a palindrome (50315251305).

The spelling of 50312130000 in words is "fifty billion, three hundred twelve million, one hundred thirty thousand".