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122887997282 = 22478792
BaseRepresentation
bin111001001110010110…
…0100000011101100010
3102202012021110001222202
41302130230200131202
54003133311403112
6132242020133202
711610164512361
oct1623454403542
9382167401882
10122887997282
1148131086236
121b996b37202
13b785614abb
145d3ab157d8
1532e37c36c2
hex1c9cb20762

122887997282 has 6 divisors (see below), whose sum is σ = 184332739563. Its totient is φ = 61443750762.

The previous prime is 122887997237. The next prime is 122887997303. The reversal of 122887997282 is 282799788221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61443998641 + 61443998641 = 247879^2 + 247879^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=247879.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 371819 + ... + 619697.

Almost surely, 2122887997282 is an apocalyptic number.

122887997282 is a deficient number, since it is larger than the sum of its proper divisors (61444742281).

122887997282 is an frugal number, since it uses more digits than its factorization.

122887997282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495760 (or 247881 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 65.

The spelling of 122887997282 in words is "one hundred twenty-two billion, eight hundred eighty-seven million, nine hundred ninety-seven thousand, two hundred eighty-two".

Divisors: 1 2 247879 495758 61443998641 122887997282