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42031413401 = 182929229769
BaseRepresentation
bin100111001001010001…
…000111100010011001
311000111020112000210212
4213021101013202121
51142040020212101
631150423020505
73015402055565
oct471121074231
9130436460725
1042031413401
1116909700a9a
12819029a735
133c6aba8023
14206a2c26a5
1511600021bb
hex9c9447899

42031413401 has 4 divisors (see below), whose sum is σ = 42031826100. Its totient is φ = 42031000704.

The previous prime is 42031413371. The next prime is 42031413409. The reversal of 42031413401 is 10431413024.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 26679955600 + 15351457801 = 163340^2 + 123901^2 .

It is a cyclic number.

It is not a de Polignac number, because 42031413401 - 210 = 42031412377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42031413409) 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, 68045 + ... + 297813.

It is an arithmetic number, because the mean of its divisors is an integer number (10507956525).

Almost surely, 242031413401 is an apocalyptic number.

It is an amenable number.

42031413401 is a deficient number, since it is larger than the sum of its proper divisors (412699).

42031413401 is a wasteful number, since it uses less digits than its factorization.

42031413401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412698.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 42031413401 its reverse (10431413024), we get a palindrome (52462826425).

The spelling of 42031413401 in words is "forty-two billion, thirty-one million, four hundred thirteen thousand, four hundred one".

Divisors: 1 182929 229769 42031413401