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10102418 = 25051209
BaseRepresentation
bin100110100010…
…011010010010
3201000020220122
4212202122102
510041234133
61000310242
7151604054
oct46423222
921006818
1010102418
115780107
123472382
132129381
1414ad8d4
15d48498
hex9a2692

10102418 has 4 divisors (see below), whose sum is σ = 15153630. Its totient is φ = 5051208.

The previous prime is 10102387. The next prime is 10102423. The reversal of 10102418 is 81420101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81420101 = 711631443.

It can be written as a sum of positive squares in only one way, i.e., 9504889 + 597529 = 3083^2 + 773^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10102396 and 10102405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525603 + ... + 2525606.

Almost surely, 210102418 is an apocalyptic number.

10102418 is a deficient number, since it is larger than the sum of its proper divisors (5051212).

10102418 is an equidigital number, since it uses as much as digits as its factorization.

10102418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051211.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 10102418 is about 3178.4301156389. The cubic root of 10102418 is about 216.1764818530.

Adding to 10102418 its reverse (81420101), we get a palindrome (91522519).

The spelling of 10102418 in words is "ten million, one hundred two thousand, four hundred eighteen".

Divisors: 1 2 5051209 10102418