Search a number
-
+
6630831860 = 2251671985279
BaseRepresentation
bin1100010110011101…
…00111011011110100
3122010010002011022012
412023032213123310
5102034443104420
63013545423352
7323214066212
oct61316473364
918103064265
106630831860
1128a2a28134
12135079ab58
1381899b163
1446c8ddcb2
1528c1e5dc5
hex18b3a76f4

6630831860 has 24 divisors (see below), whose sum is σ = 14008135680. Its totient is φ = 2636449184.

The previous prime is 6630831841. The next prime is 6630831871. The reversal of 6630831860 is 681380366.

It is a congruent number.

It is an unprimeable number.

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, 989300 + ... + 995979.

It is an arithmetic number, because the mean of its divisors is an integer number (583672320).

Almost surely, 26630831860 is an apocalyptic number.

It is an amenable number.

6630831860 is an abundant number, since it is smaller than the sum of its proper divisors (7377303820).

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

6630831860 is a wasteful number, since it uses less digits than its factorization.

6630831860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985455 (or 1985453 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 6630831860 is about 81429.9199311899. The cubic root of 6630831860 is about 1878.6938131591.

The spelling of 6630831860 in words is "six billion, six hundred thirty million, eight hundred thirty-one thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 167 334 668 835 1670 3340 1985279 3970558 7941116 9926395 19852790 39705580 331541593 663083186 1326166372 1657707965 3315415930 6630831860