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122209293 = 3101403331
BaseRepresentation
bin1110100100011…
…00010000001101
322111221212122010
413102030100031
5222241144133
620043211433
73012522213
oct722142015
9274855563
10122209293
1162a90718
1234b16b79
131c41b6bb
1412332cb3
15aae0263
hex748c40d

122209293 has 8 divisors (see below), whose sum is σ = 164559456. Its totient is φ = 80666000.

The previous prime is 122209289. The next prime is 122209303. The reversal of 122209293 is 392902221.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 122209293 - 22 = 122209289 is a prime.

It is a super-2 number, since 2×1222092932 = 29870222591119698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122209293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122209253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201363 + ... + 201968.

It is an arithmetic number, because the mean of its divisors is an integer number (20569932).

Almost surely, 2122209293 is an apocalyptic number.

It is an amenable number.

122209293 is a deficient number, since it is larger than the sum of its proper divisors (42350163).

122209293 is a wasteful number, since it uses less digits than its factorization.

122209293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403435.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 122209293 is about 11054.8312063098. The cubic root of 122209293 is about 496.2510178543.

The spelling of 122209293 in words is "one hundred twenty-two million, two hundred nine thousand, two hundred ninety-three".

Divisors: 1 3 101 303 403331 1209993 40736431 122209293