Search a number
-
+
31330122230 = 25112101256363
BaseRepresentation
bin11101001011011010…
…111011100111110110
32222212110011010001102
4131023122323213312
51003131002402410
622220505130102
72156250434141
oct351332734766
988773133042
1031330122230
1112318045600
1260a4489932
132c53b18884
141732d6b058
15c357b92a5
hex74b6bb9f6

31330122230 has 48 divisors (see below), whose sum is σ = 62601012432. Its totient is φ = 11279928000.

The previous prime is 31330122209. The next prime is 31330122277. The reversal of 31330122230 is 3222103313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5972 + ... + 250391.

It is an arithmetic number, because the mean of its divisors is an integer number (1304187759).

Almost surely, 231330122230 is an apocalyptic number.

31330122230 is a deficient number, since it is larger than the sum of its proper divisors (31270890202).

31330122230 is a wasteful number, since it uses less digits than its factorization.

31330122230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256493 (or 256482 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31330122230 its reverse (3222103313), we get a palindrome (34552225543).

The spelling of 31330122230 in words is "thirty-one billion, three hundred thirty million, one hundred twenty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 101 110 121 202 242 505 605 1010 1111 1210 2222 5555 11110 12221 24442 61105 122210 256363 512726 1281815 2563630 2819993 5639986 14099965 25892663 28199930 31019923 51785326 62039846 129463315 155099615 258926630 284819293 310199230 569638586 1424096465 2848192930 3133012223 6266024446 15665061115 31330122230