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12085507 = 72246643
BaseRepresentation
bin101110000110…
…100100000011
3211202000012101
4232012210003
511043214012
61111011231
7204503500
oct56064403
924660171
1012085507
116905025
124069b17
132671bb5
1418684a7
1510dad57
hexb86903

12085507 has 6 divisors (see below), whose sum is σ = 14058708. Its totient is φ = 10358964.

The previous prime is 12085471. The next prime is 12085517. The reversal of 12085507 is 70558021.

It is not a de Polignac number, because 12085507 - 219 = 11561219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12085517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 123273 + ... + 123370.

It is an arithmetic number, because the mean of its divisors is an integer number (2343118).

Almost surely, 212085507 is an apocalyptic number.

12085507 is a deficient number, since it is larger than the sum of its proper divisors (1973201).

12085507 is an equidigital number, since it uses as much as digits as its factorization.

12085507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246657 (or 246650 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12085507 is about 3476.4215797282. The cubic root of 12085507 is about 229.4853457891.

The spelling of 12085507 in words is "twelve million, eighty-five thousand, five hundred seven".

Divisors: 1 7 49 246643 1726501 12085507