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12090292 = 2219315661
BaseRepresentation
bin101110000111…
…101110110100
3211202020202121
4232013232310
511043342132
61111045324
7204523444
oct56075664
924666677
1012090292
116908685
124070844
132674126
14186a124
1510dc497
hexb87bb4

12090292 has 12 divisors (see below), whose sum is σ = 21268996. Its totient is φ = 6013440.

The previous prime is 12090283. The next prime is 12090301. The reversal of 12090292 is 29209021.

It is an interprime number because it is at equal distance from previous prime (12090283) and next prime (12090301).

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 3587236 = 2916^2 + 1894^2 .

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7059 + ... + 8602.

Almost surely, 212090292 is an apocalyptic number.

It is an amenable number.

12090292 is a deficient number, since it is larger than the sum of its proper divisors (9178704).

12090292 is a wasteful number, since it uses less digits than its factorization.

12090292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15858 (or 15856 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 12090292 is about 3477.1097192927. The cubic root of 12090292 is about 229.5156284103.

The spelling of 12090292 in words is "twelve million, ninety thousand, two hundred ninety-two".

Divisors: 1 2 4 193 386 772 15661 31322 62644 3022573 6045146 12090292