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6250666990 = 252342164553
BaseRepresentation
bin1011101001001000…
…11001101111101110
3121010121201210010211
411310210121233232
5100300132320430
62512125253034
7310616535631
oct56444315756
917117653124
106250666990
11271837a697
12126540417a
13787cb2c29
1443421dc18
15268b4e72a
hex174919bee

6250666990 has 32 divisors (see below), whose sum is σ = 11768452416. Its totient is φ = 2385841920.

The previous prime is 6250666963. The next prime is 6250666991. The reversal of 6250666990 is 996660526.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6250666991) 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 15 ways as a sum of consecutive naturals, for example, 64554 + ... + 129106.

It is an arithmetic number, because the mean of its divisors is an integer number (367764138).

Almost surely, 26250666990 is an apocalyptic number.

6250666990 is a deficient number, since it is larger than the sum of its proper divisors (5517785426).

6250666990 is a wasteful number, since it uses less digits than its factorization.

6250666990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65004.

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 6250666990 is about 79061.1598068230. The cubic root of 6250666990 is about 1842.0812726472.

The spelling of 6250666990 in words is "six billion, two hundred fifty million, six hundred sixty-six thousand, nine hundred ninety".

Divisors: 1 2 5 10 23 46 115 230 421 842 2105 4210 9683 19366 48415 64553 96830 129106 322765 645530 1484719 2969438 7423595 14847190 27176813 54353626 135884065 271768130 625066699 1250133398 3125333495 6250666990