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101020033 = 621716249
BaseRepresentation
bin1100000010101…
…11000110000001
321001002100102201
412001113012001
5201330120113
614005113201
72334441022
oct601270601
9231070381
10101020033
1152028934
12299b8801
1317c0cb8a
14d5b8c49
158d06cdd
hex6057181

101020033 has 4 divisors (see below), whose sum is σ = 101042500. Its totient is φ = 100997568.

The previous prime is 101020009. The next prime is 101020037. The reversal of 101020033 is 330020101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330020101 = 1917369479.

It can be written as a sum of positive squares in 2 ways, for example, as 67519089 + 33500944 = 8217^2 + 5788^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020033 - 29 = 101019521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101020037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1908 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (25260625).

Almost surely, 2101020033 is an apocalyptic number.

It is an amenable number.

101020033 is a deficient number, since it is larger than the sum of its proper divisors (22467).

101020033 is an equidigital number, since it uses as much as digits as its factorization.

101020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22466.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 101020033 is about 10050.8722507054. The cubic root of 101020033 is about 465.7317388015.

Adding to 101020033 its reverse (330020101), we get a palindrome (431040134).

The spelling of 101020033 in words is "one hundred one million, twenty thousand, thirty-three".

Divisors: 1 6217 16249 101020033