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12052047 = 373715511
BaseRepresentation
bin101101111110…
…011001001111
3211200022022010
4231332121033
511041131142
61110152303
7204304110
oct55763117
924608263
1012052047
116891977
124052693
13265c8b7
14185a207
1510d0e9c
hexb7e64f

12052047 has 16 divisors (see below), whose sum is σ = 18862592. Its totient is φ = 6700320.

The previous prime is 12052043. The next prime is 12052093. The reversal of 12052047 is 74025021.

It is not a de Polignac number, because 12052047 - 22 = 12052043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12052043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6979 + ... + 8532.

It is an arithmetic number, because the mean of its divisors is an integer number (1178912).

Almost surely, 212052047 is an apocalyptic number.

12052047 is a deficient number, since it is larger than the sum of its proper divisors (6810545).

12052047 is a wasteful number, since it uses less digits than its factorization.

12052047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15558.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12052047 is about 3471.6058243988. The cubic root of 12052047 is about 229.2733652489.

Adding to 12052047 its reverse (74025021), we get a palindrome (86077068).

The spelling of 12052047 in words is "twelve million, fifty-two thousand, forty-seven".

Divisors: 1 3 7 21 37 111 259 777 15511 46533 108577 325731 573907 1721721 4017349 12052047