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102451343 = 428923887
BaseRepresentation
bin1100001101101…
…00100010001111
321010210001211012
412012310202033
5202211420333
614055515435
72352551651
oct606644217
9233701735
10102451343
1152916235
122a388b7b
13182c14c7
14d86c6d1
158edae48
hex61b488f

102451343 has 4 divisors (see below), whose sum is σ = 102479520. Its totient is φ = 102423168.

The previous prime is 102451331. The next prime is 102451379. The reversal of 102451343 is 343154201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343154201 = 1326396477.

It is a cyclic number.

It is not a de Polignac number, because 102451343 - 222 = 98257039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102454343) 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, 7655 + ... + 16232.

It is an arithmetic number, because the mean of its divisors is an integer number (25619880).

Almost surely, 2102451343 is an apocalyptic number.

102451343 is a deficient number, since it is larger than the sum of its proper divisors (28177).

102451343 is an equidigital number, since it uses as much as digits as its factorization.

102451343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28176.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 102451343 is about 10121.8250824641. The cubic root of 102451343 is about 467.9210166341.

The spelling of 102451343 in words is "one hundred two million, four hundred fifty-one thousand, three hundred forty-three".

Divisors: 1 4289 23887 102451343