Search a number
-
+
38864650 = 2521170663
BaseRepresentation
bin1001010001000…
…0011100001010
32201010112021111
42110100130022
534422132100
63505000534
7651226006
oct224203412
981115244
1038864650
111aa35650
121102314a
138089b46
145239706
15362a6ba
hex251070a

38864650 has 24 divisors (see below), whose sum is σ = 78861024. Its totient is φ = 14132400.

The previous prime is 38864621. The next prime is 38864677. The reversal of 38864650 is 5646883.

It is a super-2 number, since 2×388646502 = 3020922039245000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34782 + ... + 35881.

It is an arithmetic number, because the mean of its divisors is an integer number (3285876).

Almost surely, 238864650 is an apocalyptic number.

38864650 is an abundant number, since it is smaller than the sum of its proper divisors (39996374).

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

38864650 is a wasteful number, since it uses less digits than its factorization.

38864650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70686 (or 70681 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 38864650 is about 6234.1519070360. The cubic root of 38864650 is about 338.7283814946.

The spelling of 38864650 in words is "thirty-eight million, eight hundred sixty-four thousand, six hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 70663 141326 353315 706630 777293 1554586 1766575 3533150 3886465 7772930 19432325 38864650