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4122012431 = 10883378757
BaseRepresentation
bin1111010110110000…
…1110101100001111
3101122021021221001002
43311230032230033
531420213344211
61521005010515
7204101345645
oct36554165417
911567257032
104122012431
11182584aa49
12970553a3b
13508ca1614
142b1635195
15191d2703b
hexf5b0eb0f

4122012431 has 4 divisors (see below), whose sum is σ = 4122402072. Its totient is φ = 4121622792.

The previous prime is 4122012397. The next prime is 4122012481. The reversal of 4122012431 is 1342102214.

4122012431 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 4122012431 - 210 = 4122011407 is a prime.

It is a super-2 number, since 2×41220124312 = 33981972962637059522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122012481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178496 + ... + 200261.

It is an arithmetic number, because the mean of its divisors is an integer number (1030600518).

Almost surely, 24122012431 is an apocalyptic number.

4122012431 is a deficient number, since it is larger than the sum of its proper divisors (389641).

4122012431 is a wasteful number, since it uses less digits than its factorization.

4122012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389640.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4122012431 is about 64202.9004874390. The cubic root of 4122012431 is about 1603.3798904718.

Adding to 4122012431 its reverse (1342102214), we get a palindrome (5464114645).

The spelling of 4122012431 in words is "four billion, one hundred twenty-two million, twelve thousand, four hundred thirty-one".

Divisors: 1 10883 378757 4122012431