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13952769 = 343108161
BaseRepresentation
bin110101001110…
…011100000001
3222020212121020
4311032130001
512032442034
61215020053
7226411425
oct65163401
928225536
1013952769
11796aa16
12480a629
132b76a9c
141bd2b85
151359249
hexd4e701

13952769 has 8 divisors (see below), whose sum is σ = 19036512. Its totient is φ = 9085440.

The previous prime is 13952753. The next prime is 13952773. The reversal of 13952769 is 96725931.

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

It is not a de Polignac number, because 13952769 - 24 = 13952753 is a prime.

It is a super-2 number, since 2×139527692 = 389359525534722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13952769.

It is not an unprimeable number, because it can be changed into a prime (13952779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53952 + ... + 54209.

It is an arithmetic number, because the mean of its divisors is an integer number (2379564).

Almost surely, 213952769 is an apocalyptic number.

It is an amenable number.

13952769 is a deficient number, since it is larger than the sum of its proper divisors (5083743).

13952769 is a wasteful number, since it uses less digits than its factorization.

13952769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108207.

The product of its digits is 102060, while the sum is 42.

The square root of 13952769 is about 3735.3405467240. The cubic root of 13952769 is about 240.7428890822.

It can be divided in two parts, 1395276 and 9, that added together give a triangular number (1395285 = T1670).

The spelling of 13952769 in words is "thirteen million, nine hundred fifty-two thousand, seven hundred sixty-nine".

Divisors: 1 3 43 129 108161 324483 4650923 13952769