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38280353 = 102137493
BaseRepresentation
bin1001001000000…
…1110010100001
32200000211202212
42102001302201
534244432403
63444251505
7643243346
oct222016241
980024685
1038280353
111a676661
12109a0b95
137c13bc7
1451267cd
1535624d8
hex2481ca1

38280353 has 4 divisors (see below), whose sum is σ = 38318868. Its totient is φ = 38241840.

The previous prime is 38280343. The next prime is 38280373. The reversal of 38280353 is 35308283.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15460624 + 22819729 = 3932^2 + 4777^2 .

It is a cyclic number.

It is not a de Polignac number, because 38280353 - 216 = 38214817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38280343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17726 + ... + 19767.

It is an arithmetic number, because the mean of its divisors is an integer number (9579717).

Almost surely, 238280353 is an apocalyptic number.

It is an amenable number.

38280353 is a deficient number, since it is larger than the sum of its proper divisors (38515).

38280353 is a wasteful number, since it uses less digits than its factorization.

38280353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38514.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 38280353 is about 6187.1118464111. Note that the first 3 decimals coincide. The cubic root of 38280353 is about 337.0223050803.

The spelling of 38280353 in words is "thirty-eight million, two hundred eighty thousand, three hundred fifty-three".

Divisors: 1 1021 37493 38280353