Search a number
-
+
310130031222 = 2321112771226557
BaseRepresentation
bin1001000001101010011…
…00001011101001110110
31002122111111100221011200
410200311030023221312
520040121241444342
6354245522513330
731256211525144
oct4406514135166
91078444327150
10310130031222
1110a586354730
1250131b05846
1323325745b1b
1411020672594
158101ba494c
hex483530ba76

310130031222 has 48 divisors (see below), whose sum is σ = 733609246032. Its totient is φ = 93905127360.

The previous prime is 310130031209. The next prime is 310130031229. The reversal of 310130031222 is 222130031013.

310130031222 is a `hidden beast` number, since 31 + 0 + 1 + 300 + 312 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 310130031195 and 310130031204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310130031229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360433 + ... + 866124.

It is an arithmetic number, because the mean of its divisors is an integer number (15283525959).

Almost surely, 2310130031222 is an apocalyptic number.

310130031222 is an abundant number, since it is smaller than the sum of its proper divisors (423479214810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

310130031222 is a wasteful number, since it uses less digits than its factorization.

310130031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227853 (or 1227850 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 310130031222 its reverse (222130031013), we get a palindrome (532260062235).

The spelling of 310130031222 in words is "three hundred ten billion, one hundred thirty million, thirty-one thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 1277 2554 3831 7662 11493 14047 22986 28094 42141 84282 126423 252846 1226557 2453114 3679671 7359342 11039013 13492127 22078026 26984254 40476381 80952762 121429143 242858286 1566313289 3132626578 4698939867 9397879734 14096819601 17229446179 28193639202 34458892358 51688338537 103376677074 155065015611 310130031222