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1969812122 = 26116146001
BaseRepresentation
bin111010101101000…
…1111001010011010
312002021112211020112
41311122033022122
513013232441442
6523243524322
766546061325
oct16532171232
95067484215
101969812122
119209a9003
1246b8296a2
13255137a05
1414987b7bc
15b7ded082
hex7568f29a

1969812122 has 8 divisors (see below), whose sum is σ = 3003156372. Its totient is φ = 968760000.

The previous prime is 1969812121. The next prime is 1969812133. The reversal of 1969812122 is 2212189691.

It can be written as a sum of positive squares in 2 ways, for example, as 1938552841 + 31259281 = 44029^2 + 5591^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1969812122.

It is not an unprimeable number, because it can be changed into a prime (1969812121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8072879 + ... + 8073122.

Almost surely, 21969812122 is an apocalyptic number.

1969812122 is a deficient number, since it is larger than the sum of its proper divisors (1033344250).

1969812122 is a wasteful number, since it uses less digits than its factorization.

1969812122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16146064.

The product of its digits is 31104, while the sum is 41.

The square root of 1969812122 is about 44382.5655184556. The cubic root of 1969812122 is about 1253.5498287895.

The spelling of 1969812122 in words is "one billion, nine hundred sixty-nine million, eight hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 61 122 16146001 32292002 984906061 1969812122