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1242400000322 = 21397492624901
BaseRepresentation
bin10010000101000100110…
…011111000100101000010
311101202211222210021222202
4102011010303320211002
5130323413400002242
62350430051433202
7155521554521225
oct22050463704502
94352758707882
101242400000322
11439998457978
121809512b5802
13902089560b0
14441bd7555bc
15224b7248932
hex12144cf8942

1242400000322 has 16 divisors (see below), whose sum is σ = 2027644096632. Its totient is φ = 567503884800.

The previous prime is 1242400000313. The next prime is 1242400000327. The reversal of 1242400000322 is 2230000042421.

It can be written as a sum of positive squares in 4 ways, for example, as 1100797557721 + 141602442601 = 1049189^2 + 376301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1242400000294 and 1242400000303.

It is not an unprimeable number, because it can be changed into a prime (1242400000327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246309929 + ... + 246314972.

Almost surely, 21242400000322 is an apocalyptic number.

1242400000322 is a deficient number, since it is larger than the sum of its proper divisors (785244096310).

1242400000322 is a wasteful number, since it uses less digits than its factorization.

1242400000322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492625013.

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

Adding to 1242400000322 its reverse (2230000042421), we get a palindrome (3472400042743).

The spelling of 1242400000322 in words is "one trillion, two hundred forty-two billion, four hundred million, three hundred twenty-two", and thus it is an aban number.

Divisors: 1 2 13 26 97 194 1261 2522 492624901 985249802 6404123713 12808247426 47784615397 95569230794 621200000161 1242400000322