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2540241431 = 71367741233
BaseRepresentation
bin1001011101101001…
…0000001000010111
320120000220122010222
42113122100020113
520200300211211
61100022104555
7116643460460
oct22732201027
96500818128
102540241431
111093999a92
125aa87b15b
1331637bb50
141a1527d67
15ed0291db
hex97690217

2540241431 has 16 divisors (see below), whose sum is σ = 3131145024. Its totient is φ = 2006843904.

The previous prime is 2540241409. The next prime is 2540241443. The reversal of 2540241431 is 1341420452.

It is not a de Polignac number, because 2540241431 - 26 = 2540241367 is a prime.

It is a super-2 number, since 2×25402414312 = 12905653055537855522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2540241431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540241491) 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, 40991 + ... + 82223.

It is an arithmetic number, because the mean of its divisors is an integer number (195696564).

Almost surely, 22540241431 is an apocalyptic number.

2540241431 is a deficient number, since it is larger than the sum of its proper divisors (590903593).

2540241431 is a wasteful number, since it uses less digits than its factorization.

2540241431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41930.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 2540241431 is about 50400.8078407479. The cubic root of 2540241431 is about 1364.4522181340.

Adding to 2540241431 its reverse (1341420452), we get a palindrome (3881661883).

The spelling of 2540241431 in words is "two billion, five hundred forty million, two hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 7 13 91 677 4739 8801 41233 61607 288631 536029 3752203 27914741 195403187 362891633 2540241431