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102402411 = 380942193
BaseRepresentation
bin1100001101010…
…00100101101011
321010200120200220
412012220211223
5202203334121
614054501123
72352256206
oct606504553
9233616626
10102402411
11528924a1
122a3647a3
13182a5157
14d85893d
158ecb6c6
hex61a896b

102402411 has 8 divisors (see below), whose sum is σ = 136708560. Its totient is φ = 68182272.

The previous prime is 102402397. The next prime is 102402427. The reversal of 102402411 is 114204201.

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

It is not a de Polignac number, because 102402411 - 29 = 102401899 is a prime.

It is a super-2 number, since 2×1024024112 = 20972507557225842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102402481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18670 + ... + 23523.

It is an arithmetic number, because the mean of its divisors is an integer number (17088570).

Almost surely, 2102402411 is an apocalyptic number.

102402411 is a deficient number, since it is larger than the sum of its proper divisors (34306149).

102402411 is an equidigital number, since it uses as much as digits as its factorization.

102402411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43005.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 102402411 is about 10119.4076407663. The cubic root of 102402411 is about 467.8465098596.

Adding to 102402411 its reverse (114204201), we get a palindrome (216606612).

The spelling of 102402411 in words is "one hundred two million, four hundred two thousand, four hundred eleven".

Divisors: 1 3 809 2427 42193 126579 34134137 102402411