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38275780 = 2251913789
BaseRepresentation
bin1001001000000…
…0101011000100
32200000121111111
42102000223010
534244311110
63444214404
7643224124
oct222005304
980017444
1038275780
111a673184
121099a404
137c11aba
145124c84
153560e8a
hex2480ac4

38275780 has 12 divisors (see below), whose sum is σ = 80379180. Its totient is φ = 15310304.

The previous prime is 38275777. The next prime is 38275801. The reversal of 38275780 is 8757283.

It can be written as a sum of positive squares in 2 ways, for example, as 21086464 + 17189316 = 4592^2 + 4146^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 956875 + ... + 956914.

It is an arithmetic number, because the mean of its divisors is an integer number (6698265).

Almost surely, 238275780 is an apocalyptic number.

It is an amenable number.

38275780 is an abundant number, since it is smaller than the sum of its proper divisors (42103400).

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

38275780 is a wasteful number, since it uses less digits than its factorization.

38275780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913798 (or 1913796 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 38275780 is about 6186.7422768368. The cubic root of 38275780 is about 337.0088842325.

The spelling of 38275780 in words is "thirty-eight million, two hundred seventy-five thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 1913789 3827578 7655156 9568945 19137890 38275780