Search a number
-
+
49720542111 = 3243281457213
BaseRepresentation
bin101110010011100100…
…110100001110011111
311202100002222020110200
4232103210310032133
51303311424321421
634501415434543
73410056430502
oct562344641637
9152302866420
1049720542111
111a0a4a4a219
129777385a53
1348c4bb5026
142599587139
151460092726
hexb9393439f

49720542111 has 24 divisors (see below), whose sum is σ = 73750447056. Its totient is φ = 32260878720.

The previous prime is 49720542083. The next prime is 49720542139. The reversal of 49720542111 is 11124502794.

49720542111 is a `hidden beast` number, since 4 + 97 + 20 + 542 + 1 + 1 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (49720542083) and next prime (49720542139).

It is not a de Polignac number, because 49720542111 - 223 = 49712153503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49720542211) 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, 119860 + ... + 337353.

It is an arithmetic number, because the mean of its divisors is an integer number (3072935294).

Almost surely, 249720542111 is an apocalyptic number.

49720542111 is a deficient number, since it is larger than the sum of its proper divisors (24029904945).

49720542111 is a wasteful number, since it uses less digits than its factorization.

49720542111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457543 (or 457540 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 49720542111 in words is "forty-nine billion, seven hundred twenty million, five hundred forty-two thousand, one hundred eleven".

Divisors: 1 3 9 43 129 281 387 843 2529 12083 36249 108747 457213 1371639 4114917 19660159 58980477 128476853 176941431 385430559 1156291677 5524504679 16573514037 49720542111