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3820974690 = 235139797371
BaseRepresentation
bin1110001110111111…
…0111001001100010
3100212021211121220010
43203233313021202
530311132142230
61431052425350
7163454514621
oct34357671142
910767747803
103820974690
111690927925
128a7778256
1348b7cc390
142836716b8
151756b09b0
hexe3bf7262

3820974690 has 32 divisors (see below), whose sum is σ = 9875750976. Its totient is φ = 940547520.

The previous prime is 3820974683. The next prime is 3820974701. The reversal of 3820974690 is 964790283.

It is a super-2 number, since 2×38209746902 = 29199695163241192200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 4898296 + ... + 4899075.

It is an arithmetic number, because the mean of its divisors is an integer number (308617218).

Almost surely, 23820974690 is an apocalyptic number.

3820974690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3820974690 is an abundant number, since it is smaller than the sum of its proper divisors (6054776286).

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

3820974690 is a wasteful number, since it uses less digits than its factorization.

3820974690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9797394.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 3820974690 is about 61814.0331154666. The cubic root of 3820974690 is about 1563.3566079714.

The spelling of 3820974690 in words is "three billion, eight hundred twenty million, nine hundred seventy-four thousand, six hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 9797371 19594742 29392113 48986855 58784226 97973710 127365823 146960565 254731646 293921130 382097469 636829115 764194938 1273658230 1910487345 3820974690