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102430 = 2510243
BaseRepresentation
bin11001000000011110
312012111201
4121000132
511234210
62110114
7604426
oct310036
9165451
10102430
116aa59
124b33a
1337813
1429486
152053a
hex1901e

102430 has 8 divisors (see below), whose sum is σ = 184392. Its totient is φ = 40968.

The previous prime is 102409. The next prime is 102433. The reversal of 102430 is 34201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 10243 = 102430 / (1 + 0 + 2 + 4 + 3 + 0).

It is an Ulam number.

It is a congruent number.

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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5112 + ... + 5131.

It is an arithmetic number, because the mean of its divisors is an integer number (23049).

2102430 is an apocalyptic number.

102430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102430 is a deficient number, since it is larger than the sum of its proper divisors (81962).

102430 is a wasteful number, since it uses less digits than its factorization.

102430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10250.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 102430 is about 320.0468715673. The cubic root of 102430 is about 46.7888521430.

Adding to 102430 its reverse (34201), we get a palindrome (136631).

The spelling of 102430 in words is "one hundred two thousand, four hundred thirty".

Divisors: 1 2 5 10 10243 20486 51215 102430