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10234034021 = 28333612437
BaseRepresentation
bin10011000011111111…
…01111011101100101
3222102020010210110002
421201333233131211
5131424403042041
64411302511045
7511415565611
oct114177573545
928366123402
1010234034021
114381933262
121b97435485
13c7132c943
146d1284341
153ed6db59b
hex261fef765

10234034021 has 4 divisors (see below), whose sum is σ = 10237649292. Its totient is φ = 10230418752.

The previous prime is 10234034009. The next prime is 10234034029. The reversal of 10234034021 is 12043043201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6991300996 + 3242733025 = 83614^2 + 56945^2 .

It is a cyclic number.

It is not a de Polignac number, because 10234034021 - 222 = 10229839717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10234033984 and 10234034002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10234034029) 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, 1803386 + ... + 1809051.

It is an arithmetic number, because the mean of its divisors is an integer number (2559412323).

Almost surely, 210234034021 is an apocalyptic number.

It is an amenable number.

10234034021 is a deficient number, since it is larger than the sum of its proper divisors (3615271).

10234034021 is an equidigital number, since it uses as much as digits as its factorization.

10234034021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615270.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 10234034021 its reverse (12043043201), we get a palindrome (22277077222).

The spelling of 10234034021 in words is "ten billion, two hundred thirty-four million, thirty-four thousand, twenty-one".

Divisors: 1 2833 3612437 10234034021