Search a number
-
+
32120502013 = 891297278261
BaseRepresentation
bin11101111010100001…
…111111011011111101
310001220112101120021201
4131322201333123331
51011240322031023
622431141455501
72214655522315
oct357241773375
9101815346251
1032120502013
1112693205636
126285111591
13304b7b0a12
1417a9d10445
15c7ed90bad
hex77a87f6fd

32120502013 has 8 divisors (see below), whose sum is σ = 32506566840. Its totient is φ = 31734996480.

The previous prime is 32120501989. The next prime is 32120502019. The reversal of 32120502013 is 31020502123.

It can be written as a sum of positive squares in 4 ways, for example, as 11029620484 + 21090881529 = 105022^2 + 145227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-32120502013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32120502019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23698 + ... + 254563.

It is an arithmetic number, because the mean of its divisors is an integer number (4063320855).

Almost surely, 232120502013 is an apocalyptic number.

It is an amenable number.

32120502013 is a deficient number, since it is larger than the sum of its proper divisors (386064827).

32120502013 is a wasteful number, since it uses less digits than its factorization.

32120502013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279647.

The product of its (nonzero) digits is 360, while the sum is 19.

The spelling of 32120502013 in words is "thirty-two billion, one hundred twenty million, five hundred two thousand, thirteen".

Divisors: 1 89 1297 115433 278261 24765229 360904517 32120502013