Search a number
-
+
212322199978 = 27212231771507
BaseRepresentation
bin1100010110111101100…
…0111010100110101010
3202022001002200022010101
43011233120322212222
511434313440344403
6241312305340014
721224353631200
oct3055730724652
9668032608111
10212322199978
118205538a449
123519633760a
1317039155375
14a3c2811070
1557ca13b71d
hex316f63a9aa

212322199978 has 24 divisors (see below), whose sum is σ = 370783710432. Its totient is φ = 90920773944.

The previous prime is 212322199967. The next prime is 212322199979. The reversal of 212322199978 is 879991223212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (212322199979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 765900 + ... + 1005607.

It is an arithmetic number, because the mean of its divisors is an integer number (15449321268).

Almost surely, 2212322199978 is an apocalyptic number.

212322199978 is a deficient number, since it is larger than the sum of its proper divisors (158461510454).

212322199978 is a wasteful number, since it uses less digits than its factorization.

212322199978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1772746 (or 1772739 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The spelling of 212322199978 in words is "two hundred twelve billion, three hundred twenty-two million, one hundred ninety-nine thousand, nine hundred seventy-eight".

Divisors: 1 2 7 14 49 98 1223 2446 8561 17122 59927 119854 1771507 3543014 12400549 24801098 86803843 173607686 2166553061 4333106122 15165871427 30331742854 106161099989 212322199978