Search a number
-
+
13902585 = 351948781
BaseRepresentation
bin110101000010…
…001011111001
3222011022202120
4311002023321
512024340320
61213551453
7226112214
oct65021371
928138676
1013902585
117936244
1247a5589
132b59ca8
141bbc77b
151349440
hexd422f9

13902585 has 16 divisors (see below), whose sum is σ = 23415360. Its totient is φ = 7024320.

The previous prime is 13902541. The next prime is 13902587. The reversal of 13902585 is 58520931.

13902585 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13902585 - 27 = 13902457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13902587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24106 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (1463460).

Almost surely, 213902585 is an apocalyptic number.

13902585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13902585 is a deficient number, since it is larger than the sum of its proper divisors (9512775).

13902585 is a wasteful number, since it uses less digits than its factorization.

13902585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48808.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 13902585 is about 3728.6170358459. The cubic root of 13902585 is about 240.4539152682.

The spelling of 13902585 in words is "thirteen million, nine hundred two thousand, five hundred eighty-five".

Divisors: 1 3 5 15 19 57 95 285 48781 146343 243905 731715 926839 2780517 4634195 13902585