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20889885714 = 23731512571229
BaseRepresentation
bin10011011101001000…
…100101110000010010
31222220212000010221220
4103131020211300102
5320240302320324
613332514425510
71336446045615
oct233510456022
958825003856
1020889885714
11894a883365
12406bb92296
131c7bb6c729
14102256c17c
15823e4ab79
hex4dd225c12

20889885714 has 64 divisors (see below), whose sum is σ = 42833283840. Its totient is φ = 6790348800.

The previous prime is 20889885689. The next prime is 20889885727. The reversal of 20889885714 is 41758898802.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16996852 + ... + 16998080.

It is an arithmetic number, because the mean of its divisors is an integer number (669270060).

Almost surely, 220889885714 is an apocalyptic number.

20889885714 is an abundant number, since it is smaller than the sum of its proper divisors (21943398126).

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

20889885714 is a wasteful number, since it uses less digits than its factorization.

20889885714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its (nonzero) digits is 10321920, while the sum is 60.

The spelling of 20889885714 in words is "twenty billion, eight hundred eighty-nine million, eight hundred eighty-five thousand, seven hundred fourteen".

Divisors: 1 2 3 6 73 146 151 219 257 302 438 453 514 771 906 1229 1542 2458 3687 7374 11023 18761 22046 33069 37522 38807 56283 66138 77614 89717 112566 116421 179434 185579 232842 269151 315853 371158 538302 556737 631706 947559 1113474 1895118 2832911 5665822 8498733 13547267 16997466 23057269 27094534 40641801 46114538 47693803 69171807 81283602 95387606 138343614 143081409 286162818 3481647619 6963295238 10444942857 20889885714