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1042462501631 = 1280981385159
BaseRepresentation
bin11110010101101111001…
…10110110101011111111
310200122210000010000011122
433022313212312223333
5114034430400023011
62114522313141155
7135213123026615
oct17126746665377
93618700100148
101042462501631
113721189a5951
1214a0526ba7bb
13773c457b555
1438653aa36b5
151c1b451d3db
hexf2b79b6aff

1042462501631 has 4 divisors (see below), whose sum is σ = 1042543899600. Its totient is φ = 1042381103664.

The previous prime is 1042462501609. The next prime is 1042462501657. The reversal of 1042462501631 is 1361052642401.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1042462501631 is a prime.

It is a super-2 number, since 2×10424625016312 (a number of 25 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 = 1042462501591 and 1042462501600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042462501231) 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, 40679771 + ... + 40705388.

It is an arithmetic number, because the mean of its divisors is an integer number (260635974900).

Almost surely, 21042462501631 is an apocalyptic number.

1042462501631 is a deficient number, since it is larger than the sum of its proper divisors (81397969).

1042462501631 is an equidigital number, since it uses as much as digits as its factorization.

1042462501631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81397968.

The product of its (nonzero) digits is 34560, while the sum is 35.

The spelling of 1042462501631 in words is "one trillion, forty-two billion, four hundred sixty-two million, five hundred one thousand, six hundred thirty-one".

Divisors: 1 12809 81385159 1042462501631