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102404434 = 2114654747
BaseRepresentation
bin1100001101010…
…01000101010010
321010200200110211
412012221011102
5202203420214
614054514334
72352265126
oct606510522
9233620424
10102404434
1152893a70
122a3659aa
13182a6052
14d859586
158ecc0c4
hex61a9152

102404434 has 8 divisors (see below), whose sum is σ = 167570928. Its totient is φ = 46547460.

The previous prime is 102404411. The next prime is 102404437. The reversal of 102404434 is 434404201.

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 (22), and also a Moran number because the ratio is a prime number: 4654747 = 102404434 / (1 + 0 + 2 + 4 + 0 + 4 + 4 + 3 + 4).

It is not an unprimeable number, because it can be changed into a prime (102404437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2327352 + ... + 2327395.

It is an arithmetic number, because the mean of its divisors is an integer number (20946366).

Almost surely, 2102404434 is an apocalyptic number.

102404434 is a deficient number, since it is larger than the sum of its proper divisors (65166494).

102404434 is a wasteful number, since it uses less digits than its factorization.

102404434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654760.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 102404434 is about 10119.5075967164. The cubic root of 102404434 is about 467.8495906701.

Adding to 102404434 its reverse (434404201), we get a palindrome (536808635).

The spelling of 102404434 in words is "one hundred two million, four hundred four thousand, four hundred thirty-four".

Divisors: 1 2 11 22 4654747 9309494 51202217 102404434