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3784030809 = 313293345739
BaseRepresentation
bin1110000110001011…
…1011101001011001
3100202201022200102020
43201202323221121
530222202441214
61423252525053
7162525505536
oct34142735131
910681280366
103784030809
111671a94399
12897320789
13483c658b0
1427c7b5d8d
151723144a9
hexe18bba59

3784030809 has 16 divisors (see below), whose sum is σ = 5620843200. Its totient is φ = 2248335936.

The previous prime is 3784030807. The next prime is 3784030813. The reversal of 3784030809 is 9080304873.

It is not a de Polignac number, because 3784030809 - 21 = 3784030807 is a prime.

It is a super-2 number, since 2×37840308092 = 28637778326922388962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3784030807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671739 + ... + 1674000.

It is an arithmetic number, because the mean of its divisors is an integer number (351302700).

Almost surely, 23784030809 is an apocalyptic number.

3784030809 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

3784030809 is a deficient number, since it is larger than the sum of its proper divisors (1836812391).

3784030809 is a wasteful number, since it uses less digits than its factorization.

3784030809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345784.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 3784030809 is about 61514.4764181571. The cubic root of 3784030809 is about 1558.3017362908.

The spelling of 3784030809 in words is "three billion, seven hundred eighty-four million, thirty thousand, eight hundred nine".

Divisors: 1 3 13 29 39 87 377 1131 3345739 10037217 43494607 97026431 130483821 291079293 1261343603 3784030809