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207340641 = 3447107509
BaseRepresentation
bin11000101101111…
…00010001100001
3112110010222220000
430112330101201
5411034400031
632324010213
75065236444
oct1426742141
9473128800
10207340641
11a7047102
1259530969
1333c57591
141d77365b
15133093e6
hexc5bc461

207340641 has 40 divisors (see below), whose sum is σ = 319904640. Its totient is φ = 133758432.

The previous prime is 207340631. The next prime is 207340657. The reversal of 207340641 is 146043702.

It is not a de Polignac number, because 207340641 - 29 = 207340129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (207340621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 407095 + ... + 407603.

It is an arithmetic number, because the mean of its divisors is an integer number (7997616).

Almost surely, 2207340641 is an apocalyptic number.

It is an amenable number.

207340641 is a deficient number, since it is larger than the sum of its proper divisors (112563999).

207340641 is a wasteful number, since it uses less digits than its factorization.

207340641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 207340641 is about 14399.3277968105. The cubic root of 207340641 is about 591.8724777446.

The spelling of 207340641 in words is "two hundred seven million, three hundred forty thousand, six hundred forty-one".

Divisors: 1 3 9 27 47 81 107 141 321 423 509 963 1269 1527 2889 3807 4581 5029 8667 13743 15087 23923 41229 45261 54463 71769 135783 163389 215307 407349 490167 645921 1470501 1937763 2559761 4411503 7679283 23037849 69113547 207340641