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12370420 = 225618521
BaseRepresentation
bin101111001100…
…000111110100
3212021111000201
4233030013310
511131323140
61121050244
7210101236
oct57140764
925244021
1012370420
116a8a097
124186984
13274179a
141900256
15114549a
hexbcc1f4

12370420 has 12 divisors (see below), whose sum is σ = 25977924. Its totient is φ = 4948160.

The previous prime is 12370409. The next prime is 12370429. The reversal of 12370420 is 2407321.

It can be written as a sum of positive squares in 2 ways, for example, as 2598544 + 9771876 = 1612^2 + 3126^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12370429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309241 + ... + 309280.

It is an arithmetic number, because the mean of its divisors is an integer number (2164827).

Almost surely, 212370420 is an apocalyptic number.

12370420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12370420 is an abundant number, since it is smaller than the sum of its proper divisors (13607504).

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

12370420 is a wasteful number, since it uses less digits than its factorization.

12370420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618530 (or 618528 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 12370420 is about 3517.1607867711. The cubic root of 12370420 is about 231.2747117492.

Adding to 12370420 its reverse (2407321), we get a palindrome (14777741).

The spelling of 12370420 in words is "twelve million, three hundred seventy thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 618521 1237042 2474084 3092605 6185210 12370420