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761374721 = 21131711383
BaseRepresentation
bin101101011000011…
…010100000000001
31222001122211202202
4231120122200001
53024402442341
6203314522545
724603402242
oct5530324001
91861584682
10761374721
1136085a108
12192b96455
13c197acb3
1473192cc9
1546c9779b
hex2d61a801

761374721 has 8 divisors (see below), whose sum is σ = 767463744. Its totient is φ = 755309520.

The previous prime is 761374717. The next prime is 761374723. The reversal of 761374721 is 127473167.

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 761374721 - 22 = 761374717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761374723) 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 7 ways as a sum of consecutive naturals, for example, 61196 + ... + 72578.

It is an arithmetic number, because the mean of its divisors is an integer number (95932968).

Almost surely, 2761374721 is an apocalyptic number.

It is an amenable number.

761374721 is a deficient number, since it is larger than the sum of its proper divisors (6089023).

761374721 is a wasteful number, since it uses less digits than its factorization.

761374721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11911.

The product of its digits is 49392, while the sum is 38.

The square root of 761374721 is about 27593.0194252097. The cubic root of 761374721 is about 913.1304340729.

The spelling of 761374721 in words is "seven hundred sixty-one million, three hundred seventy-four thousand, seven hundred twenty-one".

Divisors: 1 211 317 11383 66887 2401813 3608411 761374721