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13842620 = 2251162921
BaseRepresentation
bin110100110011…
…100010111100
3222001021111122
4310303202330
512020430440
61212410112
7225442331
oct64634274
928037448
1013842620
1178a5190
124776938
132b388cc
141ba4988
1513367b5
hexd338bc

13842620 has 24 divisors (see below), whose sum is σ = 31712688. Its totient is φ = 5033600.

The previous prime is 13842611. The next prime is 13842629. The reversal of 13842620 is 2624831.

It is an interprime number because it is at equal distance from previous prime (13842611) and next prime (13842629).

It is a self number, because there is not a number n which added to its sum of digits gives 13842620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13842629) 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 7 ways as a sum of consecutive naturals, for example, 31241 + ... + 31680.

It is an arithmetic number, because the mean of its divisors is an integer number (1321362).

Almost surely, 213842620 is an apocalyptic number.

13842620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13842620 is an abundant number, since it is smaller than the sum of its proper divisors (17870068).

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

13842620 is a wasteful number, since it uses less digits than its factorization.

13842620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62941 (or 62939 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 13842620 is about 3720.5671610656. The cubic root of 13842620 is about 240.1077062864.

It can be divided in two parts, 1384 and 2620, that added together give a palindrome (4004).

The spelling of 13842620 in words is "thirteen million, eight hundred forty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 62921 125842 251684 314605 629210 692131 1258420 1384262 2768524 3460655 6921310 13842620