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31330202222 = 211431011931699
BaseRepresentation
bin11101001011011011…
…001111001001101110
32222212110022011210002
4131023123033021232
51003131012432342
622220510544302
72156251216304
oct351333171156
988773264702
1031330202222
111231809a710
1260a4508092
132c53b460c7
141732d8c274
15c357d2d32
hex74b6cf26e

31330202222 has 64 divisors (see below), whose sum is σ = 53285126400. Its totient is φ = 13692672000.

The previous prime is 31330202213. The next prime is 31330202237. The reversal of 31330202222 is 22220203313.

It is a junction number, because it is equal to n+sod(n) for n = 31330202194 and 31330202203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18439529 + ... + 18441227.

It is an arithmetic number, because the mean of its divisors is an integer number (832580100).

Almost surely, 231330202222 is an apocalyptic number.

31330202222 is a deficient number, since it is larger than the sum of its proper divisors (21954924178).

31330202222 is a wasteful number, since it uses less digits than its factorization.

31330202222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31330202222 its reverse (22220203313), we get a palindrome (53550405535).

The spelling of 31330202222 in words is "thirty-one billion, three hundred thirty million, two hundred two thousand, two hundred twenty-two".

Divisors: 1 2 11 22 43 86 101 193 202 386 473 946 1111 1699 2123 2222 3398 4246 4343 8299 8686 16598 18689 19493 37378 38986 47773 73057 91289 95546 146114 171599 182578 214423 327907 343198 428846 655814 803627 838199 1607254 1676398 1887589 3606977 3775178 7213954 7378757 9220189 14100001 14757514 18440378 28200002 33118607 66237214 81166327 155100011 162332654 310200022 364304677 728609354 1424100101 2848200202 15665101111 31330202222