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38274285 = 3571033539
BaseRepresentation
bin1001001000000…
…0010011101101
32200000112110010
42102000103231
534244234120
63444203433
7643216560
oct222002355
980015403
1038274285
111a672045
1210999579
137c1120a
1451244d7
1535607e0
hex24804ed

38274285 has 32 divisors (see below), whose sum is σ = 70686720. Its totient is φ = 17322048.

The previous prime is 38274283. The next prime is 38274307. The reversal of 38274285 is 58247283.

It is not a de Polignac number, because 38274285 - 21 = 38274283 is a prime.

It is a super-2 number, since 2×382742852 = 2929841784522450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38274281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9046 + ... + 12584.

It is an arithmetic number, because the mean of its divisors is an integer number (2208960).

Almost surely, 238274285 is an apocalyptic number.

38274285 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38274285 is a deficient number, since it is larger than the sum of its proper divisors (32412435).

38274285 is a wasteful number, since it uses less digits than its factorization.

38274285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657.

The product of its digits is 107520, while the sum is 39.

The square root of 38274285 is about 6186.6214527802. The cubic root of 38274285 is about 337.0044964722.

The spelling of 38274285 in words is "thirty-eight million, two hundred seventy-four thousand, two hundred eighty-five".

Divisors: 1 3 5 7 15 21 35 103 105 309 515 721 1545 2163 3539 3605 10617 10815 17695 24773 53085 74319 123865 364517 371595 1093551 1822585 2551619 5467755 7654857 12758095 38274285