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97441645 = 572397721
BaseRepresentation
bin1011100111011…
…01011101101101
320210100112210211
411303231131231
5144421113040
613400302421
72262145300
oct563553555
9223315724
1097441645
1150004394
1228771a11
13172591a2
14cd26b37
15884b8ea
hex5ced76d

97441645 has 12 divisors (see below), whose sum is σ = 136020924. Its totient is φ = 66816960.

The previous prime is 97441601. The next prime is 97441667. The reversal of 97441645 is 54614479.

It can be written as a sum of positive squares in 2 ways, for example, as 21734244 + 75707401 = 4662^2 + 8701^2 .

It is not a de Polignac number, because 97441645 - 221 = 95344493 is a prime.

It is a super-3 number, since 3×974416453 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 97441598 and 97441607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 198616 + ... + 199105.

It is an arithmetic number, because the mean of its divisors is an integer number (11335077).

Almost surely, 297441645 is an apocalyptic number.

It is an amenable number.

97441645 is a deficient number, since it is larger than the sum of its proper divisors (38579279).

97441645 is a wasteful number, since it uses less digits than its factorization.

97441645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397740 (or 397733 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 97441645 is about 9871.2534665057. The cubic root of 97441645 is about 460.1663623219.

The spelling of 97441645 in words is "ninety-seven million, four hundred forty-one thousand, six hundred forty-five".

Divisors: 1 5 7 35 49 245 397721 1988605 2784047 13920235 19488329 97441645