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102843797 = 72531992
BaseRepresentation
bin1100010000101…
…00010110010101
321011112000011112
412020110112111
5202312000142
614112144405
72356105100
oct610242625
9234460145
10102843797
1153064081
122a538105
13183cb024
14d931737
159067382
hex6214595

102843797 has 18 divisors (see below), whose sum is σ = 122507478. Its totient is φ = 86053968.

The previous prime is 102843739. The next prime is 102843803. The reversal of 102843797 is 797348201.

It can be written as a sum of positive squares in only one way, i.e., 95082001 + 7761796 = 9751^2 + 2786^2 .

It is not a de Polignac number, because 102843797 - 222 = 98649493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102843707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 516704 + ... + 516902.

It is an arithmetic number, because the mean of its divisors is an integer number (6805971).

Almost surely, 2102843797 is an apocalyptic number.

It is an amenable number.

102843797 is a deficient number, since it is larger than the sum of its proper divisors (19663681).

102843797 is an frugal number, since it uses more digits than its factorization.

102843797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 102843797 is about 10141.1930757678. The cubic root of 102843797 is about 468.5177340095.

The spelling of 102843797 in words is "one hundred two million, eight hundred forty-three thousand, seven hundred ninety-seven".

Divisors: 1 7 49 53 199 371 1393 2597 9751 10547 39601 73829 277207 516803 1940449 2098853 14691971 102843797