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207831270361 = 11137120469937
BaseRepresentation
bin1100000110001110110…
…1011000001111011001
3201212110010012102211211
43001203231120033121
511401114301122421
6235250521223121
721005152436011
oct3014355301731
9655403172754
10207831270361
1180160374570
1234342331aa1
13167a1906270
14a0b81c6c41
155615c409e1
hex3063b583d9

207831270361 has 16 divisors (see below), whose sum is σ = 247604370048. Its totient is φ = 171947462400.

The previous prime is 207831270359. The next prime is 207831270371. The reversal of 207831270361 is 163072138702.

It is a happy number.

207831270361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 207831270361 - 21 = 207831270359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207831270371) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 10224816 + ... + 10245121.

It is an arithmetic number, because the mean of its divisors is an integer number (15475273128).

Almost surely, 2207831270361 is an apocalyptic number.

It is an amenable number.

207831270361 is a deficient number, since it is larger than the sum of its proper divisors (39773099687).

207831270361 is a wasteful number, since it uses less digits than its factorization.

207831270361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20470032.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 207831270361 in words is "two hundred seven billion, eight hundred thirty-one million, two hundred seventy thousand, three hundred sixty-one".

Divisors: 1 11 13 71 143 781 923 10153 20469937 225169307 266109181 1453365527 2927200991 15987020797 18893751851 207831270361