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12197480 = 235304937
BaseRepresentation
bin101110100001…
…111001101000
3211221200210112
4232201321220
511110304410
61113233452
7205451111
oct56417150
924850715
1012197480
116981169
124102888
1326b0b59
141897208
15110e105
hexba1e68

12197480 has 16 divisors (see below), whose sum is σ = 27444420. Its totient is φ = 4878976.

The previous prime is 12197443. The next prime is 12197489. The reversal of 12197480 is 8479121.

12197480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11383876 + 813604 = 3374^2 + 902^2 .

It is not an unprimeable number, because it can be changed into a prime (12197489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152429 + ... + 152508.

Almost surely, 212197480 is an apocalyptic number.

12197480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12197480 is an abundant number, since it is smaller than the sum of its proper divisors (15246940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12197480 is a wasteful number, since it uses less digits than its factorization.

12197480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304948 (or 304944 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12197480 is about 3492.4890837338. The cubic root of 12197480 is about 230.1919003351.

The spelling of 12197480 in words is "twelve million, one hundred ninety-seven thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 20 40 304937 609874 1219748 1524685 2439496 3049370 6098740 12197480