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12052746 = 233613659
BaseRepresentation
bin101101111110…
…100100001010
3211200100021000
4231332210022
511041141441
61110155430
7204306126
oct55764412
924610230
1012052746
116892452
124052b76
132660004
14185a586
1510d12b6
hexb7e90a

12052746 has 32 divisors (see below), whose sum is σ = 27230400. Its totient is φ = 3950640.

The previous prime is 12052741. The next prime is 12052753. The reversal of 12052746 is 64725021.

It is a super-2 number, since 2×120527462 = 290537372281032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12052741) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1465 + ... + 5123.

It is an arithmetic number, because the mean of its divisors is an integer number (850950).

Almost surely, 212052746 is an apocalyptic number.

12052746 is the 2196-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12052746, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13615200).

12052746 is an abundant number, since it is smaller than the sum of its proper divisors (15177654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12052746 is a wasteful number, since it uses less digits than its factorization.

12052746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3725 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 12052746 is about 3471.7064968110. The cubic root of 12052746 is about 229.2777976629.

Adding to 12052746 its reverse (64725021), we get a palindrome (76777767).

The spelling of 12052746 in words is "twelve million, fifty-two thousand, seven hundred forty-six".

Divisors: 1 2 3 6 9 18 27 54 61 122 183 366 549 1098 1647 3294 3659 7318 10977 21954 32931 65862 98793 197586 223199 446398 669597 1339194 2008791 4017582 6026373 12052746