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102436 = 2225609
BaseRepresentation
bin11001000000100100
312012111221
4121000210
511234221
62110124
7604435
oct310044
9165457
10102436
116aa64
124b344
1337819
142948c
1520541
hex19024

102436 has 6 divisors (see below), whose sum is σ = 179270. Its totient is φ = 51216.

The previous prime is 102433. The next prime is 102437. The reversal of 102436 is 634201.

It can be written as a sum of positive squares in only one way, i.e., 102400 + 36 = 320^2 + 6^2 .

It is not an unprimeable number, because it can be changed into a prime (102433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12801 + ... + 12808.

2102436 is an apocalyptic number.

It is an amenable number.

102436 is a deficient number, since it is larger than the sum of its proper divisors (76834).

102436 is a wasteful number, since it uses less digits than its factorization.

102436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25613 (or 25611 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102436 is about 320.0562450570. The cubic root of 102436 is about 46.7897657023.

Adding to 102436 its reverse (634201), we get a palindrome (736637).

It can be divided in two parts, 1024 and 36, that multiplied together give a square (36864 = 1922).

The spelling of 102436 in words is "one hundred two thousand, four hundred thirty-six".

Divisors: 1 2 4 25609 51218 102436