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31302013122022 = 2137738831546241
BaseRepresentation
bin1110001111000000100010…
…10111110111010111100110
311002211102222010002101222011
413013200101113313113212
513100323010324401042
6150323540223024434
76410332031334166
oct707402127672746
9132742863071864
1031302013122022
119a79122402655
123616658a3b11a
1314609c8626646
147a30500485a6
15394385804a17
hex1c78115f75e6

31302013122022 has 16 divisors (see below), whose sum is σ = 47296413186192. Its totient is φ = 15536545300480.

The previous prime is 31302013122007. The next prime is 31302013122043. The reversal of 31302013122022 is 22022131020313.

It is a super-2 number, since 2×313020131220222 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31302013121984 and 31302013122002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19470822 + ... + 21017062.

It is an arithmetic number, because the mean of its divisors is an integer number (2956025824137).

Almost surely, 231302013122022 is an apocalyptic number.

31302013122022 is a deficient number, since it is larger than the sum of its proper divisors (15994400064170).

31302013122022 is a wasteful number, since it uses less digits than its factorization.

31302013122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620263.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31302013122022 its reverse (22022131020313), we get a palindrome (53324144142335).

The spelling of 31302013122022 in words is "thirty-one trillion, three hundred two billion, thirteen million, one hundred twenty-two thousand, twenty-two".

Divisors: 1 2 137 274 73883 147766 1546241 3092482 10121971 20243942 211835017 423670034 114240923803 228481847606 15651006561011 31302013122022