Search a number
-
+
3995145 = 3257111153
BaseRepresentation
bin1111001111011000001001
321111222022100
433033120021
52010321040
6221344013
745646440
oct17173011
97458270
103995145
112289680
121408009
13a9b5bb
1475dd57
1553db30
hex3cf609

3995145 has 48 divisors (see below), whose sum is σ = 8641152. Its totient is φ = 1658880.

The previous prime is 3995129. The next prime is 3995161. The reversal of 3995145 is 5415993.

3995145 is nontrivially palindromic in base 14.

It is an interprime number because it is at equal distance from previous prime (3995129) and next prime (3995161).

It is not a de Polignac number, because 3995145 - 24 = 3995129 is a prime.

It is a super-2 number, since 2×39951452 = 31922367142050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2889 + ... + 4041.

It is an arithmetic number, because the mean of its divisors is an integer number (180024).

Almost surely, 23995145 is an apocalyptic number.

3995145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3995145 is an abundant number, since it is smaller than the sum of its proper divisors (4646007).

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

3995145 is a wasteful number, since it uses less digits than its factorization.

3995145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1179 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 3995145 is about 1998.7858814791. The cubic root of 3995145 is about 158.6758555946.

The spelling of 3995145 in words is "three million, nine hundred ninety-five thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 11 15 21 33 35 45 55 63 77 99 105 165 231 315 385 495 693 1153 1155 3459 3465 5765 8071 10377 12683 17295 24213 38049 40355 51885 63415 72639 88781 114147 121065 190245 266343 363195 443905 570735 799029 1331715 3995145