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764450741 = 15738912517
BaseRepresentation
bin101101100100001…
…001011110110101
31222021110010021102
4231210021132311
53031144410431
6203504455445
724641503235
oct5544113665
91867403242
10764450741
1136257017a
1219401a585
13c24b7122
1473753cc5
15471a3dcb
hex2d9097b5

764450741 has 8 divisors (see below), whose sum is σ = 771359160. Its totient is φ = 757568448.

The previous prime is 764450717. The next prime is 764450767. The reversal of 764450741 is 147054467.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 123854641 + 640596100 = 11129^2 + 25310^2 .

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 764450741 - 26 = 764450677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 764450695 and 764450704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764450711) 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, 54815 + ... + 67331.

It is an arithmetic number, because the mean of its divisors is an integer number (96419895).

Almost surely, 2764450741 is an apocalyptic number.

It is an amenable number.

764450741 is a deficient number, since it is larger than the sum of its proper divisors (6908419).

764450741 is a wasteful number, since it uses less digits than its factorization.

764450741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13063.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 764450741 is about 27648.7023384462. The cubic root of 764450741 is about 914.3584904902.

It can be divided in two parts, 7644 and 50741, that added together give a palindrome (58385).

The spelling of 764450741 in words is "seven hundred sixty-four million, four hundred fifty thousand, seven hundred forty-one".

Divisors: 1 157 389 12517 61073 1965169 4869113 764450741