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742969 = 2332303
BaseRepresentation
bin10110101011000111001
31101202011101
42311120321
5142233334
623531401
76213043
oct2653071
91352141
10742969
11468227
122b9b61
13200236
14154a93
15ea214
hexb5639

742969 has 4 divisors (see below), whose sum is σ = 775296. Its totient is φ = 710644.

The previous prime is 742967. The next prime is 742981. The reversal of 742969 is 969247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 742969 - 21 = 742967 is a prime.

It is a super-2 number, since 2×7429692 = 1104005869922, which contains 22 as substring.

It is a Duffinian number.

742969 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (742967) 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 3 ways as a sum of consecutive naturals, for example, 16129 + ... + 16174.

It is an arithmetic number, because the mean of its divisors is an integer number (193824).

2742969 is an apocalyptic number.

It is an amenable number.

742969 is a deficient number, since it is larger than the sum of its proper divisors (32327).

742969 is a wasteful number, since it uses less digits than its factorization.

742969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32326.

The product of its digits is 27216, while the sum is 37.

The square root of 742969 is about 861.9564954219. The cubic root of 742969 is about 90.5712227915.

It can be divided in two parts, 74296 and 9, that added together give a triangular number (74305 = T385).

The spelling of 742969 in words is "seven hundred forty-two thousand, nine hundred sixty-nine".

Divisors: 1 23 32303 742969