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31000202022 = 235166700337
BaseRepresentation
bin11100110111110000…
…011000101100100110
32222000110100102121110
4130313300120230212
51001442022431042
622124041525450
72145133240506
oct346760305446
988013312543
1031000202022
1112168895679
126011aa3886
132c0067320a
141701209a06
15c1684a09c
hex737c18b26

31000202022 has 8 divisors (see below), whose sum is σ = 62000404056. Its totient is φ = 10333400672.

The previous prime is 31000202021. The next prime is 31000202029. The reversal of 31000202022 is 22020200013.

It is a sphenic number, since it is the product of 3 distinct primes.

31000202022 is an admirable number.

It is a super-2 number, since 2×310002020222 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31000201989 and 31000202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31000202021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2583350163 + ... + 2583350174.

It is an arithmetic number, because the mean of its divisors is an integer number (7750050507).

Almost surely, 231000202022 is an apocalyptic number.

31000202022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31000202022 is a wasteful number, since it uses less digits than its factorization.

31000202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166700342.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 31000202022 its reverse (22020200013), we get a palindrome (53020402035).

The spelling of 31000202022 in words is "thirty-one billion, two hundred two thousand, twenty-two".

Divisors: 1 2 3 6 5166700337 10333400674 15500101011 31000202022