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207121327 = 7149919739
BaseRepresentation
bin11000101100001…
…10101110101111
3112102201212001021
430112012232233
5411010340302
632315155011
75063334160
oct1426065657
9472655037
10207121327
11a6a07356
1259445a67
1333bab7ca
141d717767
15132b4437
hexc586baf

207121327 has 8 divisors (see below), whose sum is σ = 236880000. Its totient is φ = 177405144.

The previous prime is 207121289. The next prime is 207121351. The reversal of 207121327 is 723121702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-207121327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207121357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624 + ... + 20362.

It is an arithmetic number, because the mean of its divisors is an integer number (29610000).

Almost surely, 2207121327 is an apocalyptic number.

207121327 is a deficient number, since it is larger than the sum of its proper divisors (29758673).

207121327 is a wasteful number, since it uses less digits than its factorization.

207121327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21245.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 207121327 is about 14391.7103570076. The cubic root of 207121327 is about 591.6637202877.

The spelling of 207121327 in words is "two hundred seven million, one hundred twenty-one thousand, three hundred twenty-seven".

Divisors: 1 7 1499 10493 19739 138173 29588761 207121327