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2422140431 = 2971815261
BaseRepresentation
bin1001000001011110…
…1110111000001111
320020210200111000212
42100113232320033
514430031443211
61040202513035
7114010565624
oct22027567017
96223614025
102422140431
111033264a57
1257720577b
132c7a6b3b9
1418d98434b
15e299b38b
hex905eee0f

2422140431 has 4 divisors (see below), whose sum is σ = 2422958664. Its totient is φ = 2421322200.

The previous prime is 2422140389. The next prime is 2422140437. The reversal of 2422140431 is 1340412242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2422140431 is a prime.

It is a super-2 number, since 2×24221404312 = 11733528534969731522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2422140397 and 2422140406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2422140437) 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, 404660 + ... + 410601.

It is an arithmetic number, because the mean of its divisors is an integer number (605739666).

Almost surely, 22422140431 is an apocalyptic number.

2422140431 is a deficient number, since it is larger than the sum of its proper divisors (818233).

2422140431 is an equidigital number, since it uses as much as digits as its factorization.

2422140431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818232.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2422140431 is about 49215.2459203446. The cubic root of 2422140431 is about 1342.9703971355.

Adding to 2422140431 its reverse (1340412242), we get a palindrome (3762552673).

The spelling of 2422140431 in words is "two billion, four hundred twenty-two million, one hundred forty thousand, four hundred thirty-one".

Divisors: 1 2971 815261 2422140431