Search a number
-
+
32120985533 = 721350425409
BaseRepresentation
bin11101111010100011…
…110101011110111101
310001220120022010112212
4131322203311132331
51011240433014113
622431200110205
72214662605100
oct357243653675
9101816263485
1032120985533
111269350593a
126285305365
13304b91cb20
1417a9dd8737
15c7ee390a8
hex77a8f57bd

32120985533 has 12 divisors (see below), whose sum is σ = 40239477180. Its totient is φ = 25414405632.

The previous prime is 32120985527. The next prime is 32120985551. The reversal of 32120985533 is 33558902123.

It can be written as a sum of positive squares in 2 ways, for example, as 4152771364 + 27968214169 = 64442^2 + 167237^2 .

It is not a de Polignac number, because 32120985533 - 28 = 32120985277 is a prime.

It is a super-2 number, since 2×321209855332 (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 (32120985503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25212068 + ... + 25213341.

It is an arithmetic number, because the mean of its divisors is an integer number (3353289765).

Almost surely, 232120985533 is an apocalyptic number.

It is an amenable number.

32120985533 is a deficient number, since it is larger than the sum of its proper divisors (8118491647).

32120985533 is a wasteful number, since it uses less digits than its factorization.

32120985533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50425436 (or 50425429 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 41.

The spelling of 32120985533 in words is "thirty-two billion, one hundred twenty million, nine hundred eighty-five thousand, five hundred thirty-three".

Divisors: 1 7 13 49 91 637 50425409 352977863 655530317 2470845041 4588712219 32120985533