Search a number
-
+
122237039 = 283431933
BaseRepresentation
bin1110100100100…
…11000001101111
322112000021200202
413102103001233
5222243041124
620043544115
73012666131
oct722230157
9275007622
10122237039
1162aaa551
1234b2b03b
131c42b212
141233d051
15aae85ae
hex749306f

122237039 has 4 divisors (see below), whose sum is σ = 122669256. Its totient is φ = 121804824.

The previous prime is 122237009. The next prime is 122237041. The reversal of 122237039 is 930732221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930732221 = 1634956929.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122237039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122237009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215684 + ... + 216249.

It is an arithmetic number, because the mean of its divisors is an integer number (30667314).

Almost surely, 2122237039 is an apocalyptic number.

122237039 is a deficient number, since it is larger than the sum of its proper divisors (432217).

122237039 is an equidigital number, since it uses as much as digits as its factorization.

122237039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432216.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 122237039 is about 11056.0860615319. The cubic root of 122237039 is about 496.2885707510.

The spelling of 122237039 in words is "one hundred twenty-two million, two hundred thirty-seven thousand, thirty-nine".

Divisors: 1 283 431933 122237039