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13702189 = 14991961
BaseRepresentation
bin110100010001…
…010000101101
3221210010212111
4310101100231
512001432224
61205404021
7224316034
oct64212055
927703774
1013702189
117809726
124709611
132ab9a07
141b6971b
151309d94
hexd1142d

13702189 has 4 divisors (see below), whose sum is σ = 13794300. Its totient is φ = 13610080.

The previous prime is 13702177. The next prime is 13702229. The reversal of 13702189 is 98120731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2924100 + 10778089 = 1710^2 + 3283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13702189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13702189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13700189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45832 + ... + 46129.

It is an arithmetic number, because the mean of its divisors is an integer number (3448575).

Almost surely, 213702189 is an apocalyptic number.

It is an amenable number.

13702189 is a deficient number, since it is larger than the sum of its proper divisors (92111).

13702189 is an equidigital number, since it uses as much as digits as its factorization.

13702189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92110.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 13702189 is about 3701.6467956843. The cubic root of 13702189 is about 239.2929945403.

The spelling of 13702189 in words is "thirteen million, seven hundred two thousand, one hundred eighty-nine".

Divisors: 1 149 91961 13702189