Search a number
-
+
239478085 = 57112989241
BaseRepresentation
bin11100100011000…
…10010101000101
3121200121202011201
432101202111011
5442301244320
635432502501
75635346560
oct1621422505
9550552151
10239478085
111131a7480
126824aa31
133a7ca412
1423b3b4d7
151605670a
hexe462545

239478085 has 64 divisors (see below), whose sum is σ = 376358400. Its totient is φ = 141926400.

The previous prime is 239478079. The next prime is 239478121. The reversal of 239478085 is 580874932.

It is not a de Polignac number, because 239478085 - 23 = 239478077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 993565 + ... + 993805.

It is an arithmetic number, because the mean of its divisors is an integer number (5880600).

Almost surely, 2239478085 is an apocalyptic number.

It is an amenable number.

239478085 is a deficient number, since it is larger than the sum of its proper divisors (136880315).

239478085 is a wasteful number, since it uses less digits than its factorization.

239478085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 239478085 is about 15475.0794828330. The cubic root of 239478085 is about 620.9956989061.

The spelling of 239478085 in words is "two hundred thirty-nine million, four hundred seventy-eight thousand, eighty-five".

Divisors: 1 5 7 11 29 35 55 77 89 145 203 241 319 385 445 623 979 1015 1205 1595 1687 2233 2581 2651 3115 4895 6853 6989 8435 11165 12905 13255 18067 18557 21449 28391 34265 34945 48923 76879 90335 92785 107245 141955 150143 198737 235939 244615 384395 538153 622021 750715 993685 1179695 1651573 2690765 3110105 4354147 6842231 8257865 21770735 34211155 47895617 239478085