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207145382 = 2127815533
BaseRepresentation
bin11000101100011…
…00100110100110
3112102210002001012
430112030212212
5411012123012
632315502222
75063464253
oct1426144646
9472702035
10207145382
11a6a23434
1259457972
1333bb9742
141d72242a
15132bb622
hexc58c9a6

207145382 has 8 divisors (see below), whose sum is σ = 313165056. Its totient is φ = 102757032.

The previous prime is 207145381. The next prime is 207145387. The reversal of 207145382 is 283541702.

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

It is a super-3 number, since 3×2071453823 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (207145381) 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 3 ways as a sum of consecutive naturals, for example, 407513 + ... + 408020.

It is an arithmetic number, because the mean of its divisors is an integer number (39145632).

Almost surely, 2207145382 is an apocalyptic number.

207145382 is a deficient number, since it is larger than the sum of its proper divisors (106019674).

207145382 is a wasteful number, since it uses less digits than its factorization.

207145382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815662.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 207145382 is about 14392.5460569004. The cubic root of 207145382 is about 591.6866246084.

The spelling of 207145382 in words is "two hundred seven million, one hundred forty-five thousand, three hundred eighty-two".

Divisors: 1 2 127 254 815533 1631066 103572691 207145382