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20841000704 = 28673113907
BaseRepresentation
bin10011011010001110…
…000110111100000000
31222210110000112022222
4103122032012330000
5320140244010304
613324010550212
71335313403666
oct233216067400
958713015288
1020841000704
118925224327
124057738368
131c719b49a4
141019c84c36
1581e9e14be
hex4da386f00

20841000704 has 72 divisors (see below), whose sum is σ = 42368097408. Its totient is φ = 10229345280.

The previous prime is 20841000671. The next prime is 20841000707. The reversal of 20841000704 is 40700014802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20841000707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5332319 + ... + 5336225.

Almost surely, 220841000704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20841000704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21184048704).

20841000704 is an abundant number, since it is smaller than the sum of its proper divisors (21527096704).

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

20841000704 is an equidigital number, since it uses as much as digits as its factorization.

20841000704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301 (or 4287 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The spelling of 20841000704 in words is "twenty billion, eight hundred forty-one million, seven hundred four", and thus it is an aban number.

Divisors: 1 2 4 8 16 32 64 67 128 134 256 268 311 536 622 1072 1244 2144 2488 3907 4288 4976 7814 8576 9952 15628 17152 19904 20837 31256 39808 41674 62512 79616 83348 125024 166696 250048 261769 333392 500096 523538 666784 1000192 1047076 1215077 1333568 2094152 2430154 2667136 4188304 4860308 5334272 8376608 9720616 16753216 19441232 33506432 38882464 67012864 77764928 81410159 155529856 162820318 311059712 325640636 651281272 1302562544 2605125088 5210250176 10420500352 20841000704