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12124197 = 3223371583
BaseRepresentation
bin101110010000…
…000000100101
3211210222021100
4232100000211
511100433242
61111510313
7205024341
oct56200045
924728240
1012124197
1169310a8
124088399
1326866a7
141878621
1510e754c
hexb90025

12124197 has 24 divisors (see below), whose sum is σ = 18779904. Its totient is φ = 7517664.

The previous prime is 12124183. The next prime is 12124201. The reversal of 12124197 is 79142121.

It is not a de Polignac number, because 12124197 - 210 = 12123173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12124197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12124157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6868 + ... + 8450.

It is an arithmetic number, because the mean of its divisors is an integer number (782496).

Almost surely, 212124197 is an apocalyptic number.

It is an amenable number.

12124197 is a deficient number, since it is larger than the sum of its proper divisors (6655707).

12124197 is a wasteful number, since it uses less digits than its factorization.

12124197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1646 counting only the distinct ones).

The product of its digits is 1008, while the sum is 27.

The square root of 12124197 is about 3481.9817633066. The cubic root of 12124197 is about 229.7299729591.

It can be divided in two parts, 12124 and 197, that added together give a palindrome (12321).

The spelling of 12124197 in words is "twelve million, one hundred twenty-four thousand, one hundred ninety-seven".

Divisors: 1 3 9 23 37 69 111 207 333 851 1583 2553 4749 7659 14247 36409 58571 109227 175713 327681 527139 1347133 4041399 12124197