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12160257 = 313729587
BaseRepresentation
bin101110011000…
…110100000001
3211212210201220
4232120310001
511103112012
61112345253
7205234434
oct56306401
924783656
1012160257
1169561aa
1240a5229
132699c25
14188781b
15110308c
hexb98d01

12160257 has 8 divisors (see below), whose sum is σ = 16332576. Its totient is φ = 8047392.

The previous prime is 12160243. The next prime is 12160259. The reversal of 12160257 is 75206121.

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

It is not a de Polignac number, because 12160257 - 212 = 12156161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12160259) 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, 14383 + ... + 15204.

It is an arithmetic number, because the mean of its divisors is an integer number (2041572).

Almost surely, 212160257 is an apocalyptic number.

It is an amenable number.

12160257 is a deficient number, since it is larger than the sum of its proper divisors (4172319).

12160257 is a wasteful number, since it uses less digits than its factorization.

12160257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29727.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 12160257 is about 3487.1560045401. The cubic root of 12160257 is about 229.9575031755.

Adding to 12160257 its reverse (75206121), we get a palindrome (87366378).

It can be divided in two parts, 121 and 60257, that added together give a triangular number (60378 = T347).

The spelling of 12160257 in words is "twelve million, one hundred sixty thousand, two hundred fifty-seven".

Divisors: 1 3 137 411 29587 88761 4053419 12160257