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38309093220 = 2235837692589
BaseRepresentation
bin100011101011011001…
…100101111101100100
310122212211022120110110
4203223121211331210
51111424111440340
625333212453020
72524222630266
oct435331457544
9118784276413
1038309093220
1115279536822
12751177a170
1337c696abc8
141bd5bb1b36
15ee332c680
hex8eb665f64

38309093220 has 48 divisors (see below), whose sum is σ = 108557830080. Its totient is φ = 10092675456.

The previous prime is 38309093153. The next prime is 38309093257. The reversal of 38309093220 is 2239090383.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841315 + ... + 3851274.

It is an arithmetic number, because the mean of its divisors is an integer number (2261621460).

Almost surely, 238309093220 is an apocalyptic number.

38309093220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38309093220 is an abundant number, since it is smaller than the sum of its proper divisors (70248736860).

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

38309093220 is a wasteful number, since it uses less digits than its factorization.

38309093220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692684 (or 7692682 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 39.

The spelling of 38309093220 in words is "thirty-eight billion, three hundred nine million, ninety-three thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 83 166 249 332 415 498 830 996 1245 1660 2490 4980 7692589 15385178 23077767 30770356 38462945 46155534 76925890 92311068 115388835 153851780 230777670 461555340 638484887 1276969774 1915454661 2553939548 3192424435 3830909322 6384848870 7661818644 9577273305 12769697740 19154546610 38309093220