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12072151 = 713132661
BaseRepresentation
bin101110000011…
…010011010111
3211201022212201
4232003103113
511042302101
61110425331
7204416530
oct56032327
924638781
1012072151
1168a5a93
124062247
132668ab0
141863687
1510d6e01
hexb834d7

12072151 has 8 divisors (see below), whose sum is σ = 14858144. Its totient is φ = 9551520.

The previous prime is 12072139. The next prime is 12072169. The reversal of 12072151 is 15127021.

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 12072151 - 25 = 12072119 is a prime.

It is the 3475-th Hogben number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12072131) by changing a digit.

It is a nontrivial repunit in base 3474.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66240 + ... + 66421.

It is an arithmetic number, because the mean of its divisors is an integer number (1857268).

Almost surely, 212072151 is an apocalyptic number.

12072151 is a deficient number, since it is larger than the sum of its proper divisors (2785993).

12072151 is a wasteful number, since it uses less digits than its factorization.

12072151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132681.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12072151 is about 3474.5001079292. The cubic root of 12072151 is about 229.4007779387.

Adding to 12072151 its reverse (15127021), we get a palindrome (27199172).

The spelling of 12072151 in words is "twelve million, seventy-two thousand, one hundred fifty-one".

Divisors: 1 7 13 91 132661 928627 1724593 12072151