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7478106740 = 2251328761949
BaseRepresentation
bin1101111011011101…
…01101101001110100
3201022011101011221022
412331232231221310
5110303343403430
63234013440312
7353212600316
oct67556555164
921264334838
107478106740
113198218305
1215484a0098
13922393c40
1450d2537b6
152db7aa4e5
hex1bdbada74

7478106740 has 24 divisors (see below), whose sum is σ = 16912026600. Its totient is φ = 2761147008.

The previous prime is 7478106739. The next prime is 7478106751. The reversal of 7478106740 is 476018747.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25928464 + 7452178276 = 5092^2 + 86326^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7478106691 and 7478106700.

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, 14380715 + ... + 14381234.

It is an arithmetic number, because the mean of its divisors is an integer number (704667775).

Almost surely, 27478106740 is an apocalyptic number.

It is an amenable number.

7478106740 is an abundant number, since it is smaller than the sum of its proper divisors (9433919860).

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

7478106740 is a wasteful number, since it uses less digits than its factorization.

7478106740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28761971 (or 28761969 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 7478106740 is about 86476.0472038356. The cubic root of 7478106740 is about 1955.5273150598.

The spelling of 7478106740 in words is "seven billion, four hundred seventy-eight million, one hundred six thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 28761949 57523898 115047796 143809745 287619490 373905337 575238980 747810674 1495621348 1869526685 3739053370 7478106740