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12507043 = 31795107
BaseRepresentation
bin101111101101…
…011110100011
3212112102102211
4233231132203
511200211133
61124022551
7211210453
oct57553643
925472384
1012507043
1170727aa
124231a57
13278ba23
141937d63
151170bcd
hexbed7a3

12507043 has 8 divisors (see below), whose sum is σ = 13076480. Its totient is φ = 11948040.

The previous prime is 12507041. The next prime is 12507059. The reversal of 12507043 is 34070521.

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 12507043 - 21 = 12507041 is a prime.

It is a super-2 number, since 2×125070432 = 312852249207698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12507041) 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, 105 + ... + 5002.

It is an arithmetic number, because the mean of its divisors is an integer number (1634560).

Almost surely, 212507043 is an apocalyptic number.

12507043 is a deficient number, since it is larger than the sum of its proper divisors (569437).

12507043 is an equidigital number, since it uses as much as digits as its factorization.

12507043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5217.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12507043 is about 3536.5297962834. The cubic root of 12507043 is about 232.1230211104.

Adding to 12507043 its reverse (34070521), we get a palindrome (46577564).

The spelling of 12507043 in words is "twelve million, five hundred seven thousand, forty-three".

Divisors: 1 31 79 2449 5107 158317 403453 12507043