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50313131444 = 2212578282861
BaseRepresentation
bin101110110110111001…
…010111010110110100
311210212102000220012202
4232312321113112310
51311020130201234
635040305004032
73430543363262
oct566671272664
9153772026182
1050313131444
111a3794a6374
129901923618
13498a8b77c4
142614161432
1514970e977e
hexbb6e575b4

50313131444 has 6 divisors (see below), whose sum is σ = 88047980034. Its totient is φ = 25156565720.

The previous prime is 50313131441. The next prime is 50313131483. The reversal of 50313131444 is 44413131305.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29124835600 + 21188295844 = 170660^2 + 145562^2 .

It is a super-2 number, since 2×503131314442 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50313131441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6289141427 + ... + 6289141434.

It is an arithmetic number, because the mean of its divisors is an integer number (14674663339).

Almost surely, 250313131444 is an apocalyptic number.

It is an amenable number.

50313131444 is a deficient number, since it is larger than the sum of its proper divisors (37734848590).

50313131444 is a wasteful number, since it uses less digits than its factorization.

50313131444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12578282865 (or 12578282863 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 50313131444 its reverse (44413131305), we get a palindrome (94726262749).

The spelling of 50313131444 in words is "fifty billion, three hundred thirteen million, one hundred thirty-one thousand, four hundred forty-four".

Divisors: 1 2 4 12578282861 25156565722 50313131444