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31044020222 = 223964945649
BaseRepresentation
bin11100111010010111…
…100010011111111110
32222010111210121212202
4130322113202133332
51002034232121342
622132245031502
72146204550405
oct347227423776
988114717782
1031044020222
11121905a3966
1260246b5592
132c09775947
141706d7463c
15c1a603332
hex73a5e27fe

31044020222 has 8 divisors (see below), whose sum is σ = 46760868000. Its totient is φ = 15457064224.

The previous prime is 31044020197. The next prime is 31044020239. The reversal of 31044020222 is 22202044013.

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

It is a junction number, because it is equal to n+sod(n) for n = 31044020194 and 31044020203.

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 3 ways as a sum of consecutive naturals, for example, 32472347 + ... + 32473302.

It is an arithmetic number, because the mean of its divisors is an integer number (5845108500).

Almost surely, 231044020222 is an apocalyptic number.

31044020222 is a deficient number, since it is larger than the sum of its proper divisors (15716847778).

31044020222 is a wasteful number, since it uses less digits than its factorization.

31044020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64945890.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 31044020222 its reverse (22202044013), we get a palindrome (53246064235).

The spelling of 31044020222 in words is "thirty-one billion, forty-four million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 239 478 64945649 129891298 15522010111 31044020222