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100004057 = 531886869
BaseRepresentation
bin1011111010111…
…11000011011001
320222011201202222
411331133003121
5201100112212
613531233425
72323010006
oct575370331
9228151688
10100004057
11514a458a
12295a8875
13179455ca
14d3d28ad
158ba5c72
hex5f5f0d9

100004057 has 4 divisors (see below), whose sum is σ = 101890980. Its totient is φ = 98117136.

The previous prime is 100004041. The next prime is 100004059. The reversal of 100004057 is 750400001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32501401 + 67502656 = 5701^2 + 8216^2 .

It is a cyclic number.

It is not a de Polignac number, because 100004057 - 24 = 100004041 is a prime.

It is a super-2 number, since 2×1000040572 = 20001622832918498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100004059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943382 + ... + 943487.

It is an arithmetic number, because the mean of its divisors is an integer number (25472745).

Almost surely, 2100004057 is an apocalyptic number.

It is an amenable number.

100004057 is a deficient number, since it is larger than the sum of its proper divisors (1886923).

100004057 is an equidigital number, since it uses as much as digits as its factorization.

100004057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886922.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 100004057 is about 10000.2028479426. The cubic root of 100004057 is about 464.1651602517.

Adding to 100004057 its reverse (750400001), we get a palindrome (850404058).

The spelling of 100004057 in words is "one hundred million, four thousand, fifty-seven".

Divisors: 1 53 1886869 100004057