Search a number
-
+
51423044720074 = 2717319335971597
BaseRepresentation
bin10111011000100110111000…
…10100000101010111001010
320202001222212101212010121121
423230103130110011113022
523220003343422020244
6301211230504225454
713555122662105026
oct1354233424052712
9222058771763547
1051423044720074
111542643316a685
12592616976b28a
132290231746091
14c9ac62623386
155e2970eb4c84
hex2ec4dc5055ca

51423044720074 has 64 divisors (see below), whose sum is σ = 79926462650880. Its totient is φ = 24802962186240.

The previous prime is 51423044720063. The next prime is 51423044720077. The reversal of 51423044720074 is 47002744032415.

It is a self number, because there is not a number n which added to its sum of digits gives 51423044720074.

It is not an unprimeable number, because it can be changed into a prime (51423044720077) 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, 718193244 + ... + 718264840.

It is an arithmetic number, because the mean of its divisors is an integer number (1248850978920).

Almost surely, 251423044720074 is an apocalyptic number.

51423044720074 is a deficient number, since it is larger than the sum of its proper divisors (28503417930806).

51423044720074 is a wasteful number, since it uses less digits than its factorization.

51423044720074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72295.

The product of its (nonzero) digits is 752640, while the sum is 43.

Adding to 51423044720074 its reverse (47002744032415), we get a palindrome (98425788752489).

The spelling of 51423044720074 in words is "fifty-one trillion, four hundred twenty-three billion, forty-four million, seven hundred twenty thousand, seventy-four".

Divisors: 1 2 71 73 142 146 193 359 386 718 5183 10366 13703 14089 25489 26207 27406 28178 50978 52414 69287 71597 138574 143194 1000319 1860697 2000638 3721394 4919377 5057951 5083387 5226581 9838754 10115902 10166774 10453162 13818221 25703323 27636442 51406646 359114521 371087251 718229042 742174502 981093691 1008730133 1824935933 1876342579 1962187382 2017460266 3649871866 3752685158 4960741339 9921482678 71619839443 133220323109 143239678886 266440646218 352212635069 362134117747 704425270138 724268235494 25711522360037 51423044720074