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245143041 = 311131394111
BaseRepresentation
bin11101001110010…
…01011000000001
3122002021120000220
432213021120001
51000224034131
640154133253
76034452513
oct1647113001
9562246026
10245143041
11116416660
126a121229
133ba31a70
14247b3bb3
15167c4e96
hexe9c9601

245143041 has 32 divisors (see below), whose sum is σ = 386856960. Its totient is φ = 136123200.

The previous prime is 245143037. The next prime is 245143069. The reversal of 245143041 is 140341542.

It is not a de Polignac number, because 245143041 - 22 = 245143037 is a prime.

It is a super-2 number, since 2×2451430412 = 120190221101455362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (245143001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57576 + ... + 61686.

It is an arithmetic number, because the mean of its divisors is an integer number (12089280).

Almost surely, 2245143041 is an apocalyptic number.

It is an amenable number.

245143041 is a deficient number, since it is larger than the sum of its proper divisors (141713919).

245143041 is a wasteful number, since it uses less digits than its factorization.

245143041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 245143041 is about 15657.0444528972. The cubic root of 245143041 is about 625.8542269289.

Adding to 245143041 its reverse (140341542), we get a palindrome (385484583).

The spelling of 245143041 in words is "two hundred forty-five million, one hundred forty-three thousand, forty-one".

Divisors: 1 3 11 13 33 39 139 143 417 429 1529 1807 4111 4587 5421 12333 19877 45221 53443 59631 135663 160329 571429 587873 1714287 1763619 6285719 7428577 18857157 22285731 81714347 245143041