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744200431 = 13206327749
BaseRepresentation
bin101100010110111…
…001100011101111
31220212100022001221
4230112321203233
53011003403211
6201502444211
724304412362
oct5426714357
91825308057
10744200431
11352099887
12189293667
13bb246ab0
1470ba20d9
1545503c71
hex2c5b98ef

744200431 has 8 divisors (see below), whose sum is σ = 801864000. Its totient is φ = 686596512.

The previous prime is 744200411. The next prime is 744200447. The reversal of 744200431 is 134002447.

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-744200431 is a prime.

It is a super-2 number, since 2×7442004312 = 1107668563001171522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 744200396 and 744200405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744200411) 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, 12945 + ... + 40693.

It is an arithmetic number, because the mean of its divisors is an integer number (100233000).

Almost surely, 2744200431 is an apocalyptic number.

744200431 is a deficient number, since it is larger than the sum of its proper divisors (57663569).

744200431 is a wasteful number, since it uses less digits than its factorization.

744200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29825.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 744200431 is about 27280.0372250479. The cubic root of 744200431 is about 906.2123414173.

Adding to 744200431 its reverse (134002447), we get a palindrome (878202878).

The spelling of 744200431 in words is "seven hundred forty-four million, two hundred thousand, four hundred thirty-one".

Divisors: 1 13 2063 26819 27749 360737 57246187 744200431