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269046989 = 10910692309
BaseRepresentation
bin10000000010010…
…101010011001101
3200202021000002022
4100002111103031
51022334000424
642410335525
76444601361
oct2002252315
9622230068
10269046989
11128962a92
127612a5a5
1343981103
1427a372a1
151894795e
hex100954cd

269046989 has 8 divisors (see below), whose sum is σ = 271887000. Its totient is φ = 266213952.

The previous prime is 269046977. The next prime is 269047013. The reversal of 269046989 is 989640962.

It can be written as a sum of positive squares in 4 ways, for example, as 101344489 + 167702500 = 10067^2 + 12950^2 .

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-269046989 is a prime.

It is a super-2 number, since 2×2690469892 = 144772564579932242, which contains 22 as substring.

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 269046989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (269046919) 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, 115367 + ... + 117675.

It is an arithmetic number, because the mean of its divisors is an integer number (33985875).

Almost surely, 2269046989 is an apocalyptic number.

It is an amenable number.

269046989 is a deficient number, since it is larger than the sum of its proper divisors (2840011).

269046989 is a wasteful number, since it uses less digits than its factorization.

269046989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 269046989 is about 16402.6518892525. The cubic root of 269046989 is about 645.5690661159.

The spelling of 269046989 in words is "two hundred sixty-nine million, forty-six thousand, nine hundred eighty-nine".

Divisors: 1 109 1069 2309 116521 251681 2468321 269046989