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7668380912 = 2429139118897
BaseRepresentation
bin1110010010001001…
…00011010011110000
3201210102102010000212
413021010203103300
5111201101142122
63304532003252
7361013106443
oct71104432360
921712363025
107668380912
113285668095
1215a0160528
139529243ca
1452a62365a
152ed342ce2
hex1c91234f0

7668380912 has 40 divisors (see below), whose sum is σ = 15480519600. Its totient is φ = 3675313152.

The previous prime is 7668380911. The next prime is 7668380917. The reversal of 7668380912 is 2190838667.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668380911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5048 + ... + 123944.

It is an arithmetic number, because the mean of its divisors is an integer number (387012990).

Almost surely, 27668380912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7668380912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7740259800).

7668380912 is an abundant number, since it is smaller than the sum of its proper divisors (7812138688).

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

7668380912 is a wasteful number, since it uses less digits than its factorization.

7668380912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119073 (or 119067 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 7668380912 is about 87569.2920606305. The cubic root of 7668380912 is about 1971.9741873088.

The spelling of 7668380912 in words is "seven billion, six hundred sixty-eight million, three hundred eighty thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 29 58 116 139 232 278 464 556 1112 2224 4031 8062 16124 32248 64496 118897 237794 475588 951176 1902352 3448013 6896026 13792052 16526683 27584104 33053366 55168208 66106732 132213464 264426928 479273807 958547614 1917095228 3834190456 7668380912