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38780395 = 529267451
BaseRepresentation
bin1001001111101…
…1110111101011
32200222020200221
42103323313223
534411433040
63503110511
7650425243
oct223736753
980866627
1038780395
111a988315
1210ba2437
13805a6a4
145216b23
15361074a
hex24fbdeb

38780395 has 8 divisors (see below), whose sum is σ = 48141360. Its totient is φ = 29954400.

The previous prime is 38780393. The next prime is 38780407. The reversal of 38780395 is 59308783.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38780395 - 21 = 38780393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38780393) 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, 133581 + ... + 133870.

It is an arithmetic number, because the mean of its divisors is an integer number (6017670).

Almost surely, 238780395 is an apocalyptic number.

38780395 is a deficient number, since it is larger than the sum of its proper divisors (9360965).

38780395 is a wasteful number, since it uses less digits than its factorization.

38780395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267485.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 38780395 is about 6227.3907055845. The cubic root of 38780395 is about 338.4834270319.

The spelling of 38780395 in words is "thirty-eight million, seven hundred eighty thousand, three hundred ninety-five".

Divisors: 1 5 29 145 267451 1337255 7756079 38780395