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744770047 = 7271339217
BaseRepresentation
bin101100011001000…
…100100111111111
31220220102020102211
4230121010213333
53011130120142
6201523001251
724312304150
oct5431044777
91826366384
10744770047
1135244883a
12189509227
13bb3b6148
1470cad927
15455b7917
hex2c6449ff

744770047 has 8 divisors (see below), whose sum is σ = 851501216. Its totient is φ = 638122752.

The previous prime is 744770023. The next prime is 744770053. The reversal of 744770047 is 740077447.

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

It is a cyclic number.

It is not a de Polignac number, because 744770047 - 27 = 744769919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 744769991 and 744770009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744770087) 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, 618 + ... + 38599.

It is an arithmetic number, because the mean of its divisors is an integer number (106437652).

Almost surely, 2744770047 is an apocalyptic number.

744770047 is a deficient number, since it is larger than the sum of its proper divisors (106731169).

744770047 is a wasteful number, since it uses less digits than its factorization.

744770047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41937.

The product of its (nonzero) digits is 153664, while the sum is 40.

The square root of 744770047 is about 27290.4753897766. The cubic root of 744770047 is about 906.4434894541.

The spelling of 744770047 in words is "seven hundred forty-four million, seven hundred seventy thousand, forty-seven".

Divisors: 1 7 2713 18991 39217 274519 106395721 744770047