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101026 = 250513
BaseRepresentation
bin11000101010100010
312010120201
4120222202
511213101
62055414
7600352
oct305242
9163521
10101026
11699a2
124a56a
1336ca3
1428b62
151ee01
hex18aa2

101026 has 4 divisors (see below), whose sum is σ = 151542. Its totient is φ = 50512.

The previous prime is 101021. The next prime is 101027. The reversal of 101026 is 620101.

Adding to 101026 its reverse (620101), we get a palindrome (721127).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 620101 = 1095689.

It can be written as a sum of positive squares in only one way, i.e., 63001 + 38025 = 251^2 + 195^2 .

It is a pancake number, because a pancake can be divided into 101026 parts by 449 straight cuts.

It is not an unprimeable number, because it can be changed into a prime (101021) by changing a digit.

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 as a sum of consecutive naturals, namely, 25255 + ... + 25258.

2101026 is an apocalyptic number.

101026 is a deficient number, since it is larger than the sum of its proper divisors (50516).

101026 is an equidigital number, since it uses as much as digits as its factorization.

101026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50515.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 101026 is about 317.8458745996. The cubic root of 101026 is about 46.5740908490.

The spelling of 101026 in words is "one hundred one thousand, twenty-six".

Divisors: 1 2 50513 101026