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6458630140 = 2251718995971
BaseRepresentation
bin1100000001111011…
…01101111111111100
3121200010001101221201
412000331231333330
5101211402131030
62544514505244
7316023310324
oct60075557774
917603041851
106458630140
112814801466
121302b95224
137bc0c7951
14453ab6284
1527c02d2ca
hex180f6dffc

6458630140 has 24 divisors (see below), whose sum is σ = 14360954832. Its totient is φ = 2431484160.

The previous prime is 6458630137. The next prime is 6458630153. The reversal of 6458630140 is 410368546.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6458630140.

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, 9497646 + ... + 9498325.

It is an arithmetic number, because the mean of its divisors is an integer number (598373118).

Almost surely, 26458630140 is an apocalyptic number.

It is an amenable number.

6458630140 is an abundant number, since it is smaller than the sum of its proper divisors (7902324692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6458630140 is a wasteful number, since it uses less digits than its factorization.

6458630140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18995997 (or 18995995 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 6458630140 is about 80365.6029654478. The cubic root of 6458630140 is about 1862.2878291709.

Adding to 6458630140 its reverse (410368546), we get a palindrome (6868998686).

The spelling of 6458630140 in words is "six billion, four hundred fifty-eight million, six hundred thirty thousand, one hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 18995971 37991942 75983884 94979855 189959710 322931507 379919420 645863014 1291726028 1614657535 3229315070 6458630140