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102814 = 251407
BaseRepresentation
bin11001000110011110
312020000221
4121012132
511242224
62111554
7605515
oct310636
9166027
10102814
1170278
124b5ba
1337a4a
142967c
15206e4
hex1919e

102814 has 4 divisors (see below), whose sum is σ = 154224. Its totient is φ = 51406.

The previous prime is 102811. The next prime is 102829. The reversal of 102814 is 418201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 418201 = 759743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25702 + ... + 25705.

It is an arithmetic number, because the mean of its divisors is an integer number (38556).

2102814 is an apocalyptic number.

102814 is a deficient number, since it is larger than the sum of its proper divisors (51410).

102814 is an equidigital number, since it uses as much as digits as its factorization.

102814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51409.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 102814 is about 320.6462224945. The cubic root of 102814 is about 46.8472481657.

It can be divided in two parts, 102 and 814, that multiplied together give a triangular number (83028 = T407).

The spelling of 102814 in words is "one hundred two thousand, eight hundred fourteen".

Divisors: 1 2 51407 102814