Search a number
-
+
69949469 = 1910136451
BaseRepresentation
bin1000010101101…
…01100000011101
311212121210122002
410022311200131
5120401340334
610535132045
71506363212
oct412654035
9155553562
1069949469
1136537087
121b514025
1311651825
14940bb09
15621ab7e
hex42b581d

69949469 has 8 divisors (see below), whose sum is σ = 74362080. Its totient is φ = 65610000.

The previous prime is 69949379. The next prime is 69949501. The reversal of 69949469 is 96494996.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69949469 is a prime.

It is a super-2 number, since 2×699494692 = 9785856426763922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69940469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16307 + ... + 20144.

It is an arithmetic number, because the mean of its divisors is an integer number (9295260).

Almost surely, 269949469 is an apocalyptic number.

It is an amenable number.

69949469 is a deficient number, since it is larger than the sum of its proper divisors (4412611).

69949469 is a wasteful number, since it uses less digits than its factorization.

69949469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36571.

The product of its digits is 3779136, while the sum is 56.

The square root of 69949469 is about 8363.5799153233. The cubic root of 69949469 is about 412.0293381722.

The spelling of 69949469 in words is "sixty-nine million, nine hundred forty-nine thousand, four hundred sixty-nine".

Divisors: 1 19 101 1919 36451 692569 3681551 69949469