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13870253 is a prime number
BaseRepresentation
bin110100111010…
…010010101101
3222002200102002
4310322102231
512022322003
61213142045
7225616025
oct64722255
928080362
1013870253
117913a21
12478a925
132b48367
141bb0a85
15133ea88
hexd3a4ad

13870253 has 2 divisors, whose sum is σ = 13870254. Its totient is φ = 13870252.

The previous prime is 13870243. The next prime is 13870271. The reversal of 13870253 is 35207831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13235044 + 635209 = 3638^2 + 797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13870253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13870243) 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 as a sum of consecutive naturals, namely, 6935126 + 6935127.

It is an arithmetic number, because the mean of its divisors is an integer number (6935127).

Almost surely, 213870253 is an apocalyptic number.

It is an amenable number.

13870253 is a deficient number, since it is larger than the sum of its proper divisors (1).

13870253 is an equidigital number, since it uses as much as digits as its factorization.

13870253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 13870253 is about 3724.2788563694. The cubic root of 13870253 is about 240.2673698525.

The spelling of 13870253 in words is "thirteen million, eight hundred seventy thousand, two hundred fifty-three".