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122140041 = 340713347
BaseRepresentation
bin1110100011110…
…11010110001001
322111211100122020
413101323112021
5222231440131
620041515053
73012113262
oct721732611
9274740566
10122140041
1162a43691
1234aa2a89
131c3c601a
1412315969
15aac9996
hex747b589

122140041 has 4 divisors (see below), whose sum is σ = 162853392. Its totient is φ = 81426692.

The previous prime is 122140033. The next prime is 122140043. The reversal of 122140041 is 140041221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 140041221 = 346680407.

It is a cyclic number.

It is not a de Polignac number, because 122140041 - 23 = 122140033 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122140041.

It is not an unprimeable number, because it can be changed into a prime (122140043) 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, 20356671 + ... + 20356676.

It is an arithmetic number, because the mean of its divisors is an integer number (40713348).

Almost surely, 2122140041 is an apocalyptic number.

It is an amenable number.

122140041 is a deficient number, since it is larger than the sum of its proper divisors (40713351).

122140041 is an equidigital number, since it uses as much as digits as its factorization.

122140041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40713350.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 122140041 is about 11051.6985572354. The cubic root of 122140041 is about 496.1572637485.

Adding to 122140041 its reverse (140041221), we get a palindrome (262181262).

The spelling of 122140041 in words is "one hundred twenty-two million, one hundred forty thousand, forty-one".

Divisors: 1 3 40713347 122140041