Search a number
-
+
102475 = 524099
BaseRepresentation
bin11001000001001011
312012120101
4121001023
511234400
62110231
7604522
oct310113
9165511
10102475
116aa9a
124b377
1337849
14294b9
152056a
hex1904b

102475 has 6 divisors (see below), whose sum is σ = 127100. Its totient is φ = 81960.

The previous prime is 102461. The next prime is 102481. The reversal of 102475 is 574201.

It is not a de Polignac number, because 102475 - 29 = 101963 is a prime.

It is a super-2 number, since 2×1024752 = 21002251250, which contains 22 as substring.

102475 is a lucky number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2025 + ... + 2074.

2102475 is an apocalyptic number.

102475 is a deficient number, since it is larger than the sum of its proper divisors (24625).

102475 is an equidigital number, since it uses as much as digits as its factorization.

102475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4104 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 102475 is about 320.1171660502. The cubic root of 102475 is about 46.7957029683.

Adding to 102475 its reverse (574201), we get a palindrome (676676).

It can be divided in two parts, 10 and 2475, that added together give a triangular number (2485 = T70).

The spelling of 102475 in words is "one hundred two thousand, four hundred seventy-five".

Divisors: 1 5 25 4099 20495 102475