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206871888601 = 7211140062213
BaseRepresentation
bin1100000010101010000…
…1101000001011011001
3201202222020221210111001
43000222201220023121
511342133200413401
6235011410305001
720642323016440
oct3005241501331
9652866853431
10206871888601
117a808873884
1234114b88161
131667ac1b151
14a026a0dd57
1555ab8d4601
hex302a8682d9

206871888601 has 8 divisors (see below), whose sum is σ = 237545514944. Its totient is φ = 176478387120.

The previous prime is 206871888547. The next prime is 206871888611. The reversal of 206871888601 is 106888178602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 206871888601 - 29 = 206871888089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206871888611) 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, 70029630 + ... + 70032583.

It is an arithmetic number, because the mean of its divisors is an integer number (29693189368).

Almost surely, 2206871888601 is an apocalyptic number.

It is an amenable number.

206871888601 is a deficient number, since it is larger than the sum of its proper divisors (30673626343).

206871888601 is a wasteful number, since it uses less digits than its factorization.

206871888601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140062431.

The product of its (nonzero) digits is 2064384, while the sum is 55.

The spelling of 206871888601 in words is "two hundred six billion, eight hundred seventy-one million, eight hundred eighty-eight thousand, six hundred one".

Divisors: 1 7 211 1477 140062213 980435491 29553126943 206871888601