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10632020881 = 17625412993
BaseRepresentation
bin10011110011011011…
…11100001110010001
31000102222000121210011
421321231330032101
5133233244132011
64515001034521
7524320454266
oct117155741621
930388017704
1010632020881
114566553719
122088785a41
131005917b21
1472c08326d
15423603621
hex279b7c391

10632020881 has 4 divisors (see below), whose sum is σ = 11257433892. Its totient is φ = 10006607872.

The previous prime is 10632020843. The next prime is 10632020887. The reversal of 10632020881 is 18802023601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18802023601 = 23817479287.

It can be written as a sum of positive squares in 2 ways, for example, as 7782062656 + 2849958225 = 88216^2 + 53385^2 .

It is a cyclic number.

It is not a de Polignac number, because 10632020881 - 215 = 10631988113 is a prime.

It is a super-2 number, since 2×106320208812 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10632020887) 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, 312706480 + ... + 312706513.

It is an arithmetic number, because the mean of its divisors is an integer number (2814358473).

Almost surely, 210632020881 is an apocalyptic number.

It is an amenable number.

10632020881 is a deficient number, since it is larger than the sum of its proper divisors (625413011).

10632020881 is an equidigital number, since it uses as much as digits as its factorization.

10632020881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625413010.

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 10632020881 in words is "ten billion, six hundred thirty-two million, twenty thousand, eight hundred eighty-one".

Divisors: 1 17 625412993 10632020881