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20010045426 = 2372271251149
BaseRepresentation
bin10010101000101100…
…010000111111110010
31220122112102121222120
4102220230100333302
5311440032423201
613105324415110
71305603402600
oct225054207762
956575377876
1020010045426
118539170328
123a653a7496
131b6b7b4087
14d7b77c870
157c1aa2536
hex4a8b10ff2

20010045426 has 48 divisors (see below), whose sum is σ = 46725955200. Its totient is φ = 5696036640.

The previous prime is 20010045383. The next prime is 20010045457. The reversal of 20010045426 is 62454001002.

20010045426 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 20010045396 and 20010045405.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 45901 + ... + 205248.

It is an arithmetic number, because the mean of its divisors is an integer number (973457400).

Almost surely, 220010045426 is an apocalyptic number.

20010045426 is an abundant number, since it is smaller than the sum of its proper divisors (26715909774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20010045426 is a wasteful number, since it uses less digits than its factorization.

20010045426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251439 (or 251432 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 20010045426 its reverse (62454001002), we get a palindrome (82464046428).

The spelling of 20010045426 in words is "twenty billion, ten million, forty-five thousand, four hundred twenty-six".

Divisors: 1 2 3 6 7 14 21 42 49 98 147 271 294 542 813 1626 1897 3794 5691 11382 13279 26558 39837 79674 251149 502298 753447 1506894 1758043 3516086 5274129 10548258 12306301 24612602 36918903 68061379 73837806 136122758 204184137 408368274 476429653 952859306 1429288959 2858577918 3335007571 6670015142 10005022713 20010045426