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20030006526 = 23171497571741
BaseRepresentation
bin10010101001111000…
…011010010011111110
31220200220222202110120
4102221320122103332
5312010140202101
613111320315410
71306235150325
oct225170322376
956626882416
1020030006526
118549464402
123a70012b66
131b7298288a
14d802970bc
157c36e6b36
hex4a9e1a4fe

20030006526 has 64 divisors (see below), whose sum is σ = 42782126400. Its totient is φ = 6229923840.

The previous prime is 20030006467. The next prime is 20030006537. The reversal of 20030006526 is 62560003002.

It is a super-2 number, since 2×200300065262 (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20030006496 and 20030006505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11504016 + ... + 11505756.

It is an arithmetic number, because the mean of its divisors is an integer number (668470725).

Almost surely, 220030006526 is an apocalyptic number.

20030006526 is an abundant number, since it is smaller than the sum of its proper divisors (22752119874).

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

20030006526 is a wasteful number, since it uses less digits than its factorization.

20030006526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2669.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 20030006526 its reverse (62560003002), we get a palindrome (82590009528).

The spelling of 20030006526 in words is "twenty billion, thirty million, six thousand, five hundred twenty-six".

Divisors: 1 2 3 6 17 34 51 102 149 298 447 757 894 1514 1741 2271 2533 3482 4542 5066 5223 7599 10446 12869 15198 25738 29597 38607 59194 77214 88791 112793 177582 225586 259409 338379 518818 676758 778227 1317937 1556454 1917481 2635874 3834962 3953811 4409953 5752443 7907622 8819906 11504886 13229859 22404929 26459718 44809858 67214787 134429574 196372613 392745226 589117839 1178235678 3338334421 6676668842 10015003263 20030006526