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13789442 = 229237749
BaseRepresentation
bin110100100110…
…100100000010
3221221120120002
4310212210002
512012230232
61211320002
7225131312
oct64464402
927846502
1013789442
117869237
124750002
132b1a644
141b8d442
151325b62
hexd26902

13789442 has 8 divisors (see below), whose sum is σ = 21397500. Its totient is φ = 6656944.

The previous prime is 13789441. The next prime is 13789469. The reversal of 13789442 is 24498731.

It can be written as a sum of positive squares in 2 ways, for example, as 13756681 + 32761 = 3709^2 + 181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13789396 and 13789405.

It is not an unprimeable number, because it can be changed into a prime (13789441) 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, 118817 + ... + 118932.

Almost surely, 213789442 is an apocalyptic number.

13789442 is a deficient number, since it is larger than the sum of its proper divisors (7608058).

13789442 is a wasteful number, since it uses less digits than its factorization.

13789442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237780.

The product of its digits is 48384, while the sum is 38.

The square root of 13789442 is about 3713.4137932636. The cubic root of 13789442 is about 239.7998446949.

The spelling of 13789442 in words is "thirteen million, seven hundred eighty-nine thousand, four hundred forty-two".

Divisors: 1 2 29 58 237749 475498 6894721 13789442