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38243353020 = 2235637389217
BaseRepresentation
bin100011100111011110…
…110100000110111100
310122201020121121212020
4203213132310012330
51111310244244040
625322503440140
72522464065015
oct434736640674
9118636547766
1038243353020
1115245415184
1274b3756050
1337b6161292
141bcb17c00c
15edc693cd0
hex8e77b41bc

38243353020 has 24 divisors (see below), whose sum is σ = 107081388624. Its totient is φ = 10198227456.

The previous prime is 38243352991. The next prime is 38243353037. The reversal of 38243353020 is 2035334283.

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, 318694549 + ... + 318694668.

It is an arithmetic number, because the mean of its divisors is an integer number (4461724526).

Almost surely, 238243353020 is an apocalyptic number.

38243353020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38243353020 is an abundant number, since it is smaller than the sum of its proper divisors (68838035604).

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

38243353020 is a wasteful number, since it uses less digits than its factorization.

38243353020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637389229 (or 637389227 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 38243353020 in words is "thirty-eight billion, two hundred forty-three million, three hundred fifty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 637389217 1274778434 1912167651 2549556868 3186946085 3824335302 6373892170 7648670604 9560838255 12747784340 19121676510 38243353020