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12197960 = 235304949
BaseRepresentation
bin101110100010…
…000001001000
3211221201110022
4232202001020
511110313320
61113240012
7205452365
oct56420110
924851408
1012197960
116981565
124103008
1326b1138
14189746c
15110e325
hexba2048

12197960 has 16 divisors (see below), whose sum is σ = 27445500. Its totient is φ = 4879168.

The previous prime is 12197947. The next prime is 12197963. The reversal of 12197960 is 6979121.

It can be written as a sum of positive squares in 2 ways, for example, as 11303044 + 894916 = 3362^2 + 946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12197960.

It is not an unprimeable number, because it can be changed into a prime (12197963) 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, 152435 + ... + 152514.

Almost surely, 212197960 is an apocalyptic number.

12197960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12197960 is an abundant number, since it is smaller than the sum of its proper divisors (15247540).

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

12197960 is a wasteful number, since it uses less digits than its factorization.

12197960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304960 (or 304956 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 12197960 is about 3492.5578019555. The cubic root of 12197960 is about 230.1949198293.

The spelling of 12197960 in words is "twelve million, one hundred ninety-seven thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 304949 609898 1219796 1524745 2439592 3049490 6098980 12197960