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102347389 = 811126199
BaseRepresentation
bin1100001100110…
…11001001111101
321010120210020001
412012123021331
5202200104024
614053354301
72351636614
oct606331175
9233523201
10102347389
1152855121
122a338991
13182860b1
14d84287b
158eba244
hex619b27d

102347389 has 4 divisors (see below), whose sum is σ = 102474400. Its totient is φ = 102220380.

The previous prime is 102347369. The next prime is 102347393. The reversal of 102347389 is 983743201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102347389 - 27 = 102347261 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 (102347339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62289 + ... + 63910.

It is an arithmetic number, because the mean of its divisors is an integer number (25618600).

Almost surely, 2102347389 is an apocalyptic number.

It is an amenable number.

102347389 is a deficient number, since it is larger than the sum of its proper divisors (127011).

102347389 is an equidigital number, since it uses as much as digits as its factorization.

102347389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127010.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 102347389 is about 10116.6886380871. The cubic root of 102347389 is about 467.7627017335.

The spelling of 102347389 in words is "one hundred two million, three hundred forty-seven thousand, three hundred eighty-nine".

Divisors: 1 811 126199 102347389