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38045280 = 2535713267
BaseRepresentation
bin1001000100100…
…0011001100000
32122120220022110
42101020121200
534214422110
63435235320
7641244120
oct221103140
978526273
1038045280
111a525a89
12108a8b40
137b60c00
1450a4c80
153517a20
hex2448660

38045280 has 288 divisors, whose sum is σ = 150522624. Its totient is φ = 7907328.

The previous prime is 38045237. The next prime is 38045299. The reversal of 38045280 is 8254083.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 567807 + ... + 567873.

It is an arithmetic number, because the mean of its divisors is an integer number (522648).

Almost surely, 238045280 is an apocalyptic number.

38045280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38045280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75261312).

38045280 is an abundant number, since it is smaller than the sum of its proper divisors (112477344).

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

38045280 is a wasteful number, since it uses less digits than its factorization.

38045280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 38045280 is about 6168.0856025188. The cubic root of 38045280 is about 336.3310229796.

The spelling of 38045280 in words is "thirty-eight million, forty-five thousand, two hundred eighty".