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7313620631 = 41991180001
BaseRepresentation
bin1101100111110110…
…01111111010010111
3200212200212102102012
412303323033322113
5104434241330011
63205420134435
7346144515062
oct66373177227
920780772365
107313620631
113113391479
12150139741b
138c7292595
144d54778d9
152cc118a8b
hex1b3ecfe97

7313620631 has 8 divisors (see below), whose sum is σ = 7499603328. Its totient is φ = 7128000000.

The previous prime is 7313620621. The next prime is 7313620649. The reversal of 7313620631 is 1360263137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7313620631 is a prime.

It is a super-2 number, since 2×73136206312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7313620621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49370 + ... + 130631.

It is an arithmetic number, because the mean of its divisors is an integer number (937450416).

Almost surely, 27313620631 is an apocalyptic number.

7313620631 is a deficient number, since it is larger than the sum of its proper divisors (185982697).

7313620631 is a wasteful number, since it uses less digits than its factorization.

7313620631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181033.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 7313620631 is about 85519.7090207865. The cubic root of 7313620631 is about 1941.0831651816.

Adding to 7313620631 its reverse (1360263137), we get a palindrome (8673883768).

The spelling of 7313620631 in words is "seven billion, three hundred thirteen million, six hundred twenty thousand, six hundred thirty-one".

Divisors: 1 41 991 40631 180001 7380041 178380991 7313620631