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101028418 = 250514209
BaseRepresentation
bin1100000010110…
…01001001000010
321001002202221021
412001121021002
5201330402133
614005220054
72334504331
oct601311102
9231082837
10101028418
1152034167
1229a0162a
1317c1393a
14d5bbd18
158d0952d
hex6059242

101028418 has 4 divisors (see below), whose sum is σ = 151542630. Its totient is φ = 50514208.

The previous prime is 101028409. The next prime is 101028461. The reversal of 101028418 is 814820101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 814820101 = 4119873661.

It can be written as a sum of positive squares in only one way, i.e., 82391929 + 18636489 = 9077^2 + 4317^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101028392 and 101028401.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25257103 + ... + 25257106.

Almost surely, 2101028418 is an apocalyptic number.

101028418 is a deficient number, since it is larger than the sum of its proper divisors (50514212).

101028418 is an equidigital number, since it uses as much as digits as its factorization.

101028418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50514211.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 101028418 is about 10051.2893700261. The cubic root of 101028418 is about 465.7446242081.

Adding to 101028418 its reverse (814820101), we get a palindrome (915848519).

The spelling of 101028418 in words is "one hundred one million, twenty-eight thousand, four hundred eighteen".

Divisors: 1 2 50514209 101028418