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31011354001 = 57593538457
BaseRepresentation
bin11100111000011010…
…111011010110010001
32222001020100000020201
4130320122323112101
51002002401312001
622125120535201
72145330105535
oct347032732621
988036300221
1031011354001
1112174112291
126015781501
132c02a79214
1417028adbc5
15c177ee501
hex7386bb591

31011354001 has 4 divisors (see below), whose sum is σ = 31011950052. Its totient is φ = 31010757952.

The previous prime is 31011353969. The next prime is 31011354007. The reversal of 31011354001 is 10045311013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10045311013 = 95707104959.

It can be written as a sum of positive squares in 2 ways, for example, as 19656320401 + 11355033600 = 140201^2 + 106560^2 .

It is a cyclic number.

It is not a de Polignac number, because 31011354001 - 25 = 31011353969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31011354001.

It is not an unprimeable number, because it can be changed into a prime (31011354007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211636 + ... + 326821.

It is an arithmetic number, because the mean of its divisors is an integer number (7752987513).

Almost surely, 231011354001 is an apocalyptic number.

It is an amenable number.

31011354001 is a deficient number, since it is larger than the sum of its proper divisors (596051).

31011354001 is an equidigital number, since it uses as much as digits as its factorization.

31011354001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596050.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 31011354001 its reverse (10045311013), we get a palindrome (41056665014).

The spelling of 31011354001 in words is "thirty-one billion, eleven million, three hundred fifty-four thousand, one".

Divisors: 1 57593 538457 31011354001