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12164020 = 2251155291
BaseRepresentation
bin101110011001…
…101110110100
3211212222220021
4232121232310
511103222040
61112414524
7205251421
oct56315664
924788807
1012164020
116959010
1240a7444
13269b85b
141888d48
15110424a
hexb99bb4

12164020 has 24 divisors (see below), whose sum is σ = 27867168. Its totient is φ = 4423200.

The previous prime is 12164017. The next prime is 12164039. The reversal of 12164020 is 2046121.

It is a junction number, because it is equal to n+sod(n) for n = 12163985 and 12164003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27426 + ... + 27865.

It is an arithmetic number, because the mean of its divisors is an integer number (1161132).

Almost surely, 212164020 is an apocalyptic number.

12164020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12164020 is an abundant number, since it is smaller than the sum of its proper divisors (15703148).

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

12164020 is a wasteful number, since it uses less digits than its factorization.

12164020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55311 (or 55309 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12164020 is about 3487.6955142329. The cubic root of 12164020 is about 229.9812208990.

The spelling of 12164020 in words is "twelve million, one hundred sixty-four thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 55291 110582 221164 276455 552910 608201 1105820 1216402 2432804 3041005 6082010 12164020