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50113031001 = 3112178120731
BaseRepresentation
bin101110101010111110…
…000010101101011001
311210100110111202000020
4232222332002231121
51310112413443001
635004400101053
73422563510125
oct565276025531
9153313452006
1050113031001
111a286554a00
129866904789
1349582c6887
1425d5754585
151484770736
hexbaaf82b59

50113031001 has 24 divisors (see below), whose sum is σ = 77764129632. Its totient is φ = 28584969600.

The previous prime is 50113030999. The next prime is 50113031047. The reversal of 50113031001 is 10013031105.

It is not a de Polignac number, because 50113031001 - 21 = 50113030999 is a prime.

It is a super-2 number, since 2×501130310012 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50113031071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4054195 + ... + 4066536.

It is an arithmetic number, because the mean of its divisors is an integer number (3240172068).

Almost surely, 250113031001 is an apocalyptic number.

50113031001 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

50113031001 is a deficient number, since it is larger than the sum of its proper divisors (27651098631).

50113031001 is a wasteful number, since it uses less digits than its factorization.

50113031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8120773 (or 8120762 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 15.

Adding to 50113031001 its reverse (10013031105), we get a palindrome (60126062106).

The spelling of 50113031001 in words is "fifty billion, one hundred thirteen million, thirty-one thousand, one".

Divisors: 1 3 11 17 33 51 121 187 363 561 2057 6171 8120731 24362193 89328041 138052427 267984123 414157281 982608451 1518576697 2947825353 4555730091 16704343667 50113031001