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20630106452 = 2279265724571
BaseRepresentation
bin10011001101101001…
…100111000101010100
31222020202011222210202
4103031221213011110
5314222301401302
613251034440032
71330143003644
oct231551470524
958222158722
1020630106452
11882718035a
123bb8b93018
131c3a0b4aa7
14dd9c68524
1580b234202
hex4cda67154

20630106452 has 24 divisors (see below), whose sum is σ = 36574930560. Its totient is φ = 10180235520.

The previous prime is 20630106437. The next prime is 20630106457. The reversal of 20630106452 is 25460103602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630106457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 827327 + ... + 851897.

It is an arithmetic number, because the mean of its divisors is an integer number (1523955440).

Almost surely, 220630106452 is an apocalyptic number.

It is an amenable number.

20630106452 is a deficient number, since it is larger than the sum of its proper divisors (15944824108).

20630106452 is a wasteful number, since it uses less digits than its factorization.

20630106452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27311 (or 27309 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 20630106452 in words is "twenty billion, six hundred thirty million, one hundred six thousand, four hundred fifty-two".

Divisors: 1 2 4 79 158 316 2657 5314 10628 24571 49142 98284 209903 419806 839612 1941109 3882218 7764436 65285147 130570294 261140588 5157526613 10315053226 20630106452