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74025144031 = 82389945497
BaseRepresentation
bin100010011110000111…
…1100000111011011111
321002001221100221110011
41010330033200323133
52203100414102111
654001235424051
75230261225306
oct1047417407337
9232057327404
1074025144031
112943729a393
121241aa55027
136c99330997
14382343343d
151dd3ba1021
hex113c3e0edf

74025144031 has 4 divisors (see below), whose sum is σ = 74115090352. Its totient is φ = 73935197712.

The previous prime is 74025144007. The next prime is 74025144041. The reversal of 74025144031 is 13044152047.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13044152047 = 15783083771.

It is a cyclic number.

It is not a de Polignac number, because 74025144031 - 27 = 74025143903 is a prime.

It is a super-2 number, since 2×740251440312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74025143984 and 74025144002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74025144041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44971926 + ... + 44973571.

It is an arithmetic number, because the mean of its divisors is an integer number (18528772588).

Almost surely, 274025144031 is an apocalyptic number.

74025144031 is a deficient number, since it is larger than the sum of its proper divisors (89946321).

74025144031 is an equidigital number, since it uses as much as digits as its factorization.

74025144031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89946320.

The product of its (nonzero) digits is 13440, while the sum is 31.

Adding to 74025144031 its reverse (13044152047), we get a palindrome (87069296078).

The spelling of 74025144031 in words is "seventy-four billion, twenty-five million, one hundred forty-four thousand, thirty-one".

Divisors: 1 823 89945497 74025144031