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7630506361 = 29263120909
BaseRepresentation
bin1110001101101000…
…00100100101111001
3201200210010212220201
413012310010211321
5111111402200421
63301100122201
7360043143142
oct70664044571
921623125821
107630506361
113266249405
12158b536361
13947b2312a
145255a4ac9
152e9d60b91
hex1c6d04979

7630506361 has 4 divisors (see below), whose sum is σ = 7893627300. Its totient is φ = 7367385424.

The previous prime is 7630506349. The next prime is 7630506371. The reversal of 7630506361 is 1636050367.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1845991225 + 5784515136 = 42965^2 + 76056^2 .

It is a cyclic number.

It is not a de Polignac number, because 7630506361 - 211 = 7630504313 is a prime.

It is a super-2 number, since 2×76305063612 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7630506361.

It is not an unprimeable number, because it can be changed into a prime (7630506311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131560426 + ... + 131560483.

It is an arithmetic number, because the mean of its divisors is an integer number (1973406825).

Almost surely, 27630506361 is an apocalyptic number.

It is an amenable number.

7630506361 is a deficient number, since it is larger than the sum of its proper divisors (263120939).

7630506361 is a wasteful number, since it uses less digits than its factorization.

7630506361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263120938.

The product of its (nonzero) digits is 68040, while the sum is 37.

The square root of 7630506361 is about 87352.7696240938. The cubic root of 7630506361 is about 1968.7222649712.

The spelling of 7630506361 in words is "seven billion, six hundred thirty million, five hundred six thousand, three hundred sixty-one".

Divisors: 1 29 263120909 7630506361