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7636630345 = 55328817473
BaseRepresentation
bin1110001110010110…
…11011101101001001
3201201012200000102221
413013023123231021
5111114434132340
63301435254041
7360146200261
oct70713335511
921635600387
107636630345
113269751453
1215915aa321
139491886a6
1452631a7a1
152ea67044a
hex1c72dbb49

7636630345 has 8 divisors (see below), whose sum is σ = 9336861576. Its totient is φ = 5994034176.

The previous prime is 7636630343. The next prime is 7636630381. The reversal of 7636630345 is 5430366367.

It can be written as a sum of positive squares in 4 ways, for example, as 37847104 + 7598783241 = 6152^2 + 87171^2 .

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 7636630345 - 21 = 7636630343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7636630343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14408472 + ... + 14409001.

It is an arithmetic number, because the mean of its divisors is an integer number (1167107697).

Almost surely, 27636630345 is an apocalyptic number.

It is an amenable number.

7636630345 is a deficient number, since it is larger than the sum of its proper divisors (1700231231).

7636630345 is a wasteful number, since it uses less digits than its factorization.

7636630345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28817531.

The product of its (nonzero) digits is 816480, while the sum is 43.

The square root of 7636630345 is about 87387.8157697056. The cubic root of 7636630345 is about 1969.2488005710.

The spelling of 7636630345 in words is "seven billion, six hundred thirty-six million, six hundred thirty thousand, three hundred forty-five".

Divisors: 1 5 53 265 28817473 144087365 1527326069 7636630345