Search a number
-
+
53012252013 = 3719170977743
BaseRepresentation
bin110001010111110001…
…101100010101101101
312001211111220102120020
4301113301230111231
51332032114031023
640204204312353
73554456464410
oct612761542555
9161744812506
1053012252013
1120534041626
12a3358426b9
134ccab53b76
1427cc805b77
1515a4058de3
hexc57c6c56d

53012252013 has 32 divisors (see below), whose sum is σ = 85083033600. Its totient is φ = 28681200576.

The previous prime is 53012252011. The next prime is 53012252023. The reversal of 53012252013 is 31025221035.

It is a happy number.

It is not a de Polignac number, because 53012252013 - 21 = 53012252011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53012252011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643020 + ... + 720762.

It is an arithmetic number, because the mean of its divisors is an integer number (2658844800).

Almost surely, 253012252013 is an apocalyptic number.

It is an amenable number.

53012252013 is a deficient number, since it is larger than the sum of its proper divisors (32070781587).

53012252013 is a wasteful number, since it uses less digits than its factorization.

53012252013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79481.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 53012252013 its reverse (31025221035), we get a palindrome (84037473048).

The spelling of 53012252013 in words is "fifty-three billion, twelve million, two hundred fifty-two thousand, thirteen".

Divisors: 1 3 7 19 21 57 133 399 1709 5127 11963 32471 35889 77743 97413 227297 233229 544201 681891 1477117 1632603 4431351 10339819 31019457 132862787 398588361 930039509 2524392953 2790118527 7573178859 17670750671 53012252013