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10100312443 = 13776947111
BaseRepresentation
bin10010110100000011…
…01000100101111011
3222001220112000221001
421122001220211323
5131141134444233
64350124425431
7505203145024
oct113201504573
928056460831
1010100312443
1143133aa261
121b5a6a8277
13c4c710250
146bb5d5c4b
153e1ac527d
hex25a06897b

10100312443 has 4 divisors (see below), whose sum is σ = 10877259568. Its totient is φ = 9323365320.

The previous prime is 10100312423. The next prime is 10100312477. The reversal of 10100312443 is 34421300101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34421300101 = 103933129259.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10100312443 is a prime.

It is a super-2 number, since 2×101003124432 (a number of 21 digits) contains 22 as substring.

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 10100312443.

It is not an unprimeable number, because it can be changed into a prime (10100312423) 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, 388473543 + ... + 388473568.

It is an arithmetic number, because the mean of its divisors is an integer number (2719314892).

Almost surely, 210100312443 is an apocalyptic number.

10100312443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10100312443 is a deficient number, since it is larger than the sum of its proper divisors (776947125).

10100312443 is an equidigital number, since it uses as much as digits as its factorization.

10100312443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776947124.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10100312443 its reverse (34421300101), we get a palindrome (44521612544).

The spelling of 10100312443 in words is "ten billion, one hundred million, three hundred twelve thousand, four hundred forty-three".

Divisors: 1 13 776947111 10100312443