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12237071 = 711158923
BaseRepresentation
bin101110101011…
…100100001111
3212000201002212
4232223210033
511113041241
61114141035
7206004410
oct56534417
925021085
1012237071
1169a8990
12412177b
1326c5b92
1418a7807
15111abeb
hexbab90f

12237071 has 8 divisors (see below), whose sum is σ = 15256704. Its totient is φ = 9535320.

The previous prime is 12237037. The next prime is 12237077. The reversal of 12237071 is 17073221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12237071 - 210 = 12236047 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 (12237077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79385 + ... + 79538.

It is an arithmetic number, because the mean of its divisors is an integer number (1907088).

Almost surely, 212237071 is an apocalyptic number.

12237071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12237071 is a deficient number, since it is larger than the sum of its proper divisors (3019633).

12237071 is a wasteful number, since it uses less digits than its factorization.

12237071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158941.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 12237071 is about 3498.1525123985. The cubic root of 12237071 is about 230.4406862847.

The spelling of 12237071 in words is "twelve million, two hundred thirty-seven thousand, seventy-one".

Divisors: 1 7 11 77 158923 1112461 1748153 12237071