Search a number
-
+
51225542303091 = 3133974231781967
BaseRepresentation
bin10111010010110111000000…
…10000001001110101110011
320201101010002010012210220220
423221123200100021311303
523203234402312144331
6300540404514104123
713534631456212122
oct1351334020116563
9221333063183826
1051225542303091
111535a6a3201582
1258b3a2a57b043
1322777179bb1a0
14c91488123ab9
155dc761e40296
hex2e96e0409d73

51225542303091 has 32 divisors (see below), whose sum is σ = 73757423781888. Its totient is φ = 31436534574720.

The previous prime is 51225542303077. The next prime is 51225542303179. The reversal of 51225542303091 is 19030324552215.

It is not a de Polignac number, because 51225542303091 - 214 = 51225542286707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51225542303041) 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, 65117590 + ... + 65899556.

It is an arithmetic number, because the mean of its divisors is an integer number (2304919493184).

Almost surely, 251225542303091 is an apocalyptic number.

51225542303091 is a deficient number, since it is larger than the sum of its proper divisors (22531881478797).

51225542303091 is a wasteful number, since it uses less digits than its factorization.

51225542303091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786611.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 51225542303091 in words is "fifty-one trillion, two hundred twenty-five billion, five hundred forty-two million, three hundred three thousand, ninety-one".

Divisors: 1 3 13 39 397 1191 4231 5161 12693 15483 55003 165009 781967 1679707 2345901 5039121 10165571 21836191 30496713 65508573 310440899 931322697 3308502377 4035731687 9925507131 12107195061 43010530901 129031592703 1313475443669 3940426331007 17075180767697 51225542303091