Search a number
-
+
38941565 = 5131374373
BaseRepresentation
bin1001010010001…
…1001101111101
32201021102210012
42110203031331
534432112230
63510353005
7651666155
oct224431575
981242705
1038941565
111aa88413
121105b765
1380b5b60
145259765
153643395
hex252337d

38941565 has 16 divisors (see below), whose sum is σ = 50703408. Its totient is φ = 28540416.

The previous prime is 38941559. The next prime is 38941571. The reversal of 38941565 is 56514983.

It is an interprime number because it is at equal distance from previous prime (38941559) and next prime (38941571).

It can be written as a sum of positive squares in 8 ways, for example, as 1315609 + 37625956 = 1147^2 + 6134^2 .

It is a cyclic number.

It is not a de Polignac number, because 38941565 - 222 = 34747261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6719 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (3168963).

Almost surely, 238941565 is an apocalyptic number.

It is an amenable number.

38941565 is a deficient number, since it is larger than the sum of its proper divisors (11761843).

38941565 is a wasteful number, since it uses less digits than its factorization.

38941565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4528.

The product of its digits is 129600, while the sum is 41.

The square root of 38941565 is about 6240.3177002457. The cubic root of 38941565 is about 338.9516874674.

The spelling of 38941565 in words is "thirty-eight million, nine hundred forty-one thousand, five hundred sixty-five".

Divisors: 1 5 13 65 137 685 1781 4373 8905 21865 56849 284245 599101 2995505 7788313 38941565