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742013247 = 3397623017
BaseRepresentation
bin101100001110100…
…011100100111111
31220201020011211010
4230032203210333
53004423410442
6201343530303
724250002633
oct5416434477
91821204733
10742013247
11350935598
121885b9993
13ba95c3c1
1470792dc3
1545220b9c
hex2c3a393f

742013247 has 8 divisors (see below), whose sum is σ = 991844656. Its totient is φ = 493428672.

The previous prime is 742013201. The next prime is 742013269. The reversal of 742013247 is 742310247.

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

It is not a de Polignac number, because 742013247 - 26 = 742013183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742013147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310318 + ... + 312699.

It is an arithmetic number, because the mean of its divisors is an integer number (123980582).

Almost surely, 2742013247 is an apocalyptic number.

742013247 is a deficient number, since it is larger than the sum of its proper divisors (249831409).

742013247 is a wasteful number, since it uses less digits than its factorization.

742013247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623417.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 742013247 is about 27239.9200990018. The cubic root of 742013247 is about 905.3236928040.

The spelling of 742013247 in words is "seven hundred forty-two million, thirteen thousand, two hundred forty-seven".

Divisors: 1 3 397 1191 623017 1869051 247337749 742013247