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66652341 = 373838287
BaseRepresentation
bin1111111001000…
…0100010110101
311122102021211020
43332100202311
5114030333331
610340331353
71436351460
oct376204265
9148367736
1066652341
1134694988
121a3a3b59
1310a68b72
148bd02d7
155cb8c96
hex3f908b5

66652341 has 16 divisors (see below), whose sum is σ = 101842944. Its totient is φ = 37983024.

The previous prime is 66652303. The next prime is 66652343. The reversal of 66652341 is 14325666.

It is not a de Polignac number, because 66652341 - 210 = 66651317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66652343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3900 + ... + 12186.

It is an arithmetic number, because the mean of its divisors is an integer number (6365184).

Almost surely, 266652341 is an apocalyptic number.

It is an amenable number.

66652341 is a deficient number, since it is larger than the sum of its proper divisors (35190603).

66652341 is a wasteful number, since it uses less digits than its factorization.

66652341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8680.

The product of its digits is 25920, while the sum is 33.

The square root of 66652341 is about 8164.0884978055. The cubic root of 66652341 is about 405.4510870915.

The spelling of 66652341 in words is "sixty-six million, six hundred fifty-two thousand, three hundred forty-one".

Divisors: 1 3 7 21 383 1149 2681 8043 8287 24861 58009 174027 3173921 9521763 22217447 66652341