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122238489 = 3167243989
BaseRepresentation
bin1110100100100…
…11011000011001
322112000100200110
413102103120121
5222243112424
620043554533
73013003302
oct722233031
9275010613
10122238489
116300064a
1234b2ba49
131c42ba89
141233d7a9
15aae8c29
hex7493619

122238489 has 8 divisors (see below), whose sum is σ = 163961280. Its totient is φ = 81004016.

The previous prime is 122238481. The next prime is 122238503. The reversal of 122238489 is 984832221.

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 122238489 - 23 = 122238481 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122238481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121494 + ... + 122495.

It is an arithmetic number, because the mean of its divisors is an integer number (20495160).

Almost surely, 2122238489 is an apocalyptic number.

It is an amenable number.

122238489 is a deficient number, since it is larger than the sum of its proper divisors (41722791).

122238489 is a wasteful number, since it uses less digits than its factorization.

122238489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244159.

The product of its digits is 55296, while the sum is 39.

The square root of 122238489 is about 11056.1516360803. The cubic root of 122238489 is about 496.2905331011.

The spelling of 122238489 in words is "one hundred twenty-two million, two hundred thirty-eight thousand, four hundred eighty-nine".

Divisors: 1 3 167 501 243989 731967 40746163 122238489