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7242063805 = 512457116273
BaseRepresentation
bin1101011111010100…
…10001111110111101
3200200201012221220101
412233222101332331
5104312432020210
63154342321101
7344315345434
oct65752217675
920621187811
107242063805
113086a577a9
1214a1429191
138b54ca272
144c9b6c11b
152c5bd1a3a
hex1afa91fbd

7242063805 has 8 divisors (see below), whose sum is σ = 8691248952. Its totient is φ = 5793136128.

The previous prime is 7242063799. The next prime is 7242063833. The reversal of 7242063805 is 5083602427.

It can be written as a sum of positive squares in 4 ways, for example, as 3273441796 + 3968622009 = 57214^2 + 62997^2 .

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 7242063805 - 29 = 7242063293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4149 + ... + 120421.

It is an arithmetic number, because the mean of its divisors is an integer number (1086406119).

Almost surely, 27242063805 is an apocalyptic number.

It is an amenable number.

7242063805 is a deficient number, since it is larger than the sum of its proper divisors (1449185147).

7242063805 is a wasteful number, since it uses less digits than its factorization.

7242063805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128735.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 7242063805 is about 85100.3161274974. The cubic root of 7242063805 is about 1934.7318548457.

The spelling of 7242063805 in words is "seven billion, two hundred forty-two million, sixty-three thousand, eight hundred five".

Divisors: 1 5 12457 62285 116273 581365 1448412761 7242063805