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38362820 = 2255633407
BaseRepresentation
bin1001001001010…
…1111011000100
32200012000220012
42102111323010
534310102240
63450125352
7644035646
oct222257304
980160805
1038362820
111a722611
1210a20858
137c425c2
145148896
15357bb65
hex2495ec4

38362820 has 24 divisors (see below), whose sum is σ = 80728704. Its totient is φ = 15313376.

The previous prime is 38362813. The next prime is 38362823. The reversal of 38362820 is 2826383.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38362823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9557 + ... + 12963.

It is an arithmetic number, because the mean of its divisors is an integer number (3363696).

Almost surely, 238362820 is an apocalyptic number.

It is an amenable number.

38362820 is an abundant number, since it is smaller than the sum of its proper divisors (42365884).

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

38362820 is a wasteful number, since it uses less digits than its factorization.

38362820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3977 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 38362820 is about 6193.7726790705. The cubic root of 38362820 is about 337.2641461457.

The spelling of 38362820 in words is "thirty-eight million, three hundred sixty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 563 1126 2252 2815 3407 5630 6814 11260 13628 17035 34070 68140 1918141 3836282 7672564 9590705 19181410 38362820