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310012113443 = 2313478787541
BaseRepresentation
bin1001000001011100010…
…10010111001000100011
31002122012021111002101112
410200232022113020203
520034401100112233
6354230111253535
731253250325424
oct4405612271043
91078167432345
10310012113443
1110a52583531a
12500ba51a2ab
132330719a8a6
141100cb3964b
1580e6661048
hex482e297223

310012113443 has 4 divisors (see below), whose sum is σ = 323490901008. Its totient is φ = 296533325880.

The previous prime is 310012113431. The next prime is 310012113457. The reversal of 310012113443 is 344311210013.

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

It is a cyclic number.

It is not a de Polignac number, because 310012113443 - 210 = 310012112419 is a prime.

It is a super-2 number, since 2×3100121134432 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 13478787541 = 310012113443 / (3 + 1 + 0 + 0 + 1 + 2 + 1 + 1 + 3 + 4 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (310012115443) 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, 6739393748 + ... + 6739393793.

It is an arithmetic number, because the mean of its divisors is an integer number (80872725252).

Almost surely, 2310012113443 is an apocalyptic number.

310012113443 is a deficient number, since it is larger than the sum of its proper divisors (13478787565).

310012113443 is a wasteful number, since it uses less digits than its factorization.

310012113443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13478787564.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 310012113443 its reverse (344311210013), we get a palindrome (654323323456).

The spelling of 310012113443 in words is "three hundred ten billion, twelve million, one hundred thirteen thousand, four hundred forty-three".

Divisors: 1 23 13478787541 310012113443