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20812675168706 = 279234156269027
BaseRepresentation
bin1001011101101110101000…
…00111000011100111000010
32201200200011010011112100012
410232313110013003213002
510211443324320344311
6112133113323224522
74245444331001351
oct456672407034702
981620133145305
1020812675168706
1166a4673602673
122401776978142
13b7c81c24bb25
1451d4a5b53998
152615bad1378b
hex12edd41c39c2

20812675168706 has 16 divisors (see below), whose sum is σ = 31627695258240. Its totient is φ = 10270222625520.

The previous prime is 20812675168667. The next prime is 20812675168729. The reversal of 20812675168706 is 60786157621802.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27764636 + ... + 28504391.

It is an arithmetic number, because the mean of its divisors is an integer number (1976730953640).

Almost surely, 220812675168706 is an apocalyptic number.

20812675168706 is a deficient number, since it is larger than the sum of its proper divisors (10815020089534).

20812675168706 is a wasteful number, since it uses less digits than its factorization.

20812675168706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56271449.

The product of its (nonzero) digits is 13547520, while the sum is 59.

The spelling of 20812675168706 in words is "twenty trillion, eight hundred twelve billion, six hundred seventy-five million, one hundred sixty-eight thousand, seven hundred six".

Divisors: 1 2 79 158 2341 4682 184939 369878 56269027 112538054 4445253133 8890506266 131725792207 263451584414 10406337584353 20812675168706