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38251985 = 531246787
BaseRepresentation
bin1001000111101…
…0110111010001
32122222101212012
42101322313101
534243030420
63443512305
7643064552
oct221726721
978871765
1038251985
111a657312
1210988695
137c04015
14511a329
153558dc5
hex247add1

38251985 has 8 divisors (see below), whose sum is σ = 47383296. Its totient is φ = 29614320.

The previous prime is 38251981. The next prime is 38251987. The reversal of 38251985 is 58915283.

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

It is not a de Polignac number, because 38251985 - 22 = 38251981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38251981) 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, 123239 + ... + 123548.

It is an arithmetic number, because the mean of its divisors is an integer number (5922912).

Almost surely, 238251985 is an apocalyptic number.

It is an amenable number.

38251985 is a deficient number, since it is larger than the sum of its proper divisors (9131311).

38251985 is a wasteful number, since it uses less digits than its factorization.

38251985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246823.

The product of its digits is 86400, while the sum is 41.

The square root of 38251985 is about 6184.8189140831. The cubic root of 38251985 is about 336.9390333701.

The spelling of 38251985 in words is "thirty-eight million, two hundred fifty-one thousand, nine hundred eighty-five".

Divisors: 1 5 31 155 246787 1233935 7650397 38251985