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206448151 = 7135574073
BaseRepresentation
bin11000100111000…
…10011000010111
3112101110122121211
430103202120113
5410322320101
632252522251
75054531440
oct1423423027
9471418554
10206448151
11a6597608
1259180387
1333a04290
141d5c02c7
15131cec51
hexc4e2617

206448151 has 16 divisors (see below), whose sum is σ = 254608704. Its totient is φ = 163010304.

The previous prime is 206448133. The next prime is 206448163. The reversal of 206448151 is 151844602.

It is a cyclic number.

It is not a de Polignac number, because 206448151 - 211 = 206446103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206448131) 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 15 ways as a sum of consecutive naturals, for example, 48651 + ... + 52723.

It is an arithmetic number, because the mean of its divisors is an integer number (15913044).

Almost surely, 2206448151 is an apocalyptic number.

206448151 is a deficient number, since it is larger than the sum of its proper divisors (48160553).

206448151 is a wasteful number, since it uses less digits than its factorization.

206448151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4650.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 206448151 is about 14368.3036925032. The cubic root of 206448151 is about 591.0220253796.

The spelling of 206448151 in words is "two hundred six million, four hundred forty-eight thousand, one hundred fifty-one".

Divisors: 1 7 13 91 557 3899 4073 7241 28511 50687 52949 370643 2268661 15880627 29492593 206448151