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31302030022 = 2163241398417
BaseRepresentation
bin11101001001101111…
…110001001011000110
32222210111021212210021
4131021233301023012
51003101304430042
622214023045354
72155456602514
oct351157611306
988714255707
1031302030022
11123031a84aa
126096ba085a
132c4b061073
14172d3374b4
15c330ba867
hex749bf12c6

31302030022 has 16 divisors (see below), whose sum is σ = 47437240752. Its totient is φ = 15490414080.

The previous prime is 31302030017. The next prime is 31302030037. The reversal of 31302030022 is 22003020313.

It is a junction number, because it is equal to n+sod(n) for n = 31302029978 and 31302030005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120643 + ... + 277774.

It is an arithmetic number, because the mean of its divisors is an integer number (2964827547).

Almost surely, 231302030022 is an apocalyptic number.

31302030022 is a deficient number, since it is larger than the sum of its proper divisors (16135210730).

31302030022 is a wasteful number, since it uses less digits than its factorization.

31302030022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398823.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 31302030022 its reverse (22003020313), we get a palindrome (53305050335).

The spelling of 31302030022 in words is "thirty-one billion, three hundred two million, thirty thousand, twenty-two".

Divisors: 1 2 163 241 326 482 39283 78566 398417 796834 64941971 96018497 129883942 192036994 15651015011 31302030022