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123120000222 = 23307310921499
BaseRepresentation
bin111001010101010000…
…1100001110011011110
3102202210110000001012020
41302222201201303132
54004122210001342
6132321024521010
711616012506652
oct1625241416336
9382713001166
10123120000222
11482400374aa
121ba40780166
13b7c16c594b
145d5d868a62
153308d500ec
hex1caa861cde

123120000222 has 32 divisors (see below), whose sum is σ = 247133040000. Its totient is φ = 40891259808.

The previous prime is 123120000197. The next prime is 123120000259. The reversal of 123120000222 is 222000021321.

It is a happy number.

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 15 ways as a sum of consecutive naturals, for example, 5716029 + ... + 5737527.

It is an arithmetic number, because the mean of its divisors is an integer number (7722907500).

Almost surely, 2123120000222 is an apocalyptic number.

123120000222 is an abundant number, since it is smaller than the sum of its proper divisors (124013039778).

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

123120000222 is a wasteful number, since it uses less digits than its factorization.

123120000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24920.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 123120000222 its reverse (222000021321), we get a palindrome (345120021543).

The spelling of 123120000222 in words is "one hundred twenty-three billion, one hundred twenty million, two hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 3 6 307 614 921 1842 3109 6218 9327 18654 21499 42998 64497 128994 954463 1908926 2863389 5726778 6600193 13200386 19800579 39601158 66840391 133680782 200521173 401042346 20520000037 41040000074 61560000111 123120000222