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12038071 = 83145037
BaseRepresentation
bin101101111010…
…111110110111
3211122121010111
4231322332313
511040204241
61110003451
7204215263
oct55727667
924577114
1012038071
116882421
124046587
132656426
1418550a3
1510cbc81
hexb7afb7

12038071 has 4 divisors (see below), whose sum is σ = 12183192. Its totient is φ = 11892952.

The previous prime is 12038041. The next prime is 12038083. The reversal of 12038071 is 17083021.

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 12038071 - 211 = 12036023 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 (12038011) 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, 72436 + ... + 72601.

It is an arithmetic number, because the mean of its divisors is an integer number (3045798).

Almost surely, 212038071 is an apocalyptic number.

12038071 is a deficient number, since it is larger than the sum of its proper divisors (145121).

12038071 is an equidigital number, since it uses as much as digits as its factorization.

12038071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145120.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 12038071 is about 3469.5923391661. The cubic root of 12038071 is about 229.1847063412.

The spelling of 12038071 in words is "twelve million, thirty-eight thousand, seventy-one".

Divisors: 1 83 145037 12038071