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49925768761 = 1153273131357
BaseRepresentation
bin101110011111110011…
…101100011000111001
311202212102010211111201
4232133303230120321
51304221444100021
634534030254201
73415131014101
oct563763543071
9152772124451
1049925768761
111a19a882020
129814057361
13492857c30b
1425b892a201
1514730d0591
hexb9fcec639

49925768761 has 16 divisors (see below), whose sum is σ = 55514196288. Its totient is φ = 44512977600.

The previous prime is 49925768723. The next prime is 49925768771. The reversal of 49925768761 is 16786752994.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49925768761 is a prime.

It is a super-3 number, since 3×499257687613 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49925768693 and 49925768702.

It is not an unprimeable number, because it can be changed into a prime (49925768701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576495 + ... + 1607851.

It is an arithmetic number, because the mean of its divisors is an integer number (3469637268).

Almost surely, 249925768761 is an apocalyptic number.

It is an amenable number.

49925768761 is a deficient number, since it is larger than the sum of its proper divisors (5588427527).

49925768761 is a wasteful number, since it uses less digits than its factorization.

49925768761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34152.

The product of its digits is 45722880, while the sum is 64.

The spelling of 49925768761 in words is "forty-nine billion, nine hundred twenty-five million, seven hundred sixty-eight thousand, seven hundred sixty-one".

Divisors: 1 11 53 583 2731 30041 31357 144743 344927 1592173 1661921 18281131 85635967 941995637 4538706251 49925768761