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23410431142421 = 43354065660837
BaseRepresentation
bin1010101001010101010100…
…11011101010101000010101
310001220000102012100002102212
411110222222123222220111
511032024030333024141
6121442334213243205
74634230210310651
oct524525233525025
9101800365302385
1023410431142421
117506343086874
122761122033505
13100a79556599b
145ad0dc829a61
152a8e5bb472eb
hex154aaa6eaa15

23410431142421 has 4 divisors (see below), whose sum is σ = 23464496803692. Its totient is φ = 23356365481152.

The previous prime is 23410431142411. The next prime is 23410431142459. The reversal of 23410431142421 is 12424113401432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2116774747396 + 21293656395025 = 1454914^2 + 4614505^2 .

It is a cyclic number.

It is not a de Polignac number, because 23410431142421 - 226 = 23410364033557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23410431142411) 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, 27032829986 + ... + 27032830851.

It is an arithmetic number, because the mean of its divisors is an integer number (5866124200923).

Almost surely, 223410431142421 is an apocalyptic number.

It is an amenable number.

23410431142421 is a deficient number, since it is larger than the sum of its proper divisors (54065661271).

23410431142421 is an equidigital number, since it uses as much as digits as its factorization.

23410431142421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54065661270.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 23410431142421 its reverse (12424113401432), we get a palindrome (35834544543853).

The spelling of 23410431142421 in words is "twenty-three trillion, four hundred ten billion, four hundred thirty-one million, one hundred forty-two thousand, four hundred twenty-one".

Divisors: 1 433 54065660837 23410431142421