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10420884631 = 15169012481
BaseRepresentation
bin10011011010010001…
…00001010010010111
3222220020201210022001
421231020201102113
5132320221302011
64442015420131
7516145025563
oct115510412227
928806653261
1010420884631
114468354953
122029b24647
13ca0c61a31
1470c0026a3
1540ece97c1
hex26d221497

10420884631 has 4 divisors (see below), whose sum is σ = 10489897264. Its totient is φ = 10351872000.

The previous prime is 10420884623. The next prime is 10420884673. The reversal of 10420884631 is 13648802401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13648802401 = 131049907877.

It is a cyclic number.

It is not a de Polignac number, because 10420884631 - 23 = 10420884623 is a prime.

It is a super-2 number, since 2×104208846312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10430884631) 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, 34506090 + ... + 34506391.

It is an arithmetic number, because the mean of its divisors is an integer number (2622474316).

Almost surely, 210420884631 is an apocalyptic number.

10420884631 is a deficient number, since it is larger than the sum of its proper divisors (69012633).

10420884631 is an equidigital number, since it uses as much as digits as its factorization.

10420884631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69012632.

The product of its (nonzero) digits is 36864, while the sum is 37.

The spelling of 10420884631 in words is "ten billion, four hundred twenty million, eight hundred eighty-four thousand, six hundred thirty-one".

Divisors: 1 151 69012481 10420884631