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100030111 = 727137593
BaseRepresentation
bin1011111011001…
…01011010011111
320222020001111221
411331211122133
5201101430421
613531554211
72323145656
oct575453237
9228201457
10100030111
1151512115
12295bb967
131795441c
14d3dc19d
158bad841
hex5f6569f

100030111 has 4 divisors (see below), whose sum is σ = 100168432. Its totient is φ = 99891792.

The previous prime is 100030109. The next prime is 100030121. The reversal of 100030111 is 111030001.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 100030111 - 21 = 100030109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100030094 and 100030103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100030121) 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, 68070 + ... + 69523.

It is an arithmetic number, because the mean of its divisors is an integer number (25042108).

Almost surely, 2100030111 is an apocalyptic number.

100030111 is a deficient number, since it is larger than the sum of its proper divisors (138321).

100030111 is an equidigital number, since it uses as much as digits as its factorization.

100030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138320.

The product of its (nonzero) digits is 3, while the sum is 7.

The square root of 100030111 is about 10001.5054366830. The cubic root of 100030111 is about 464.2054663132.

Adding to 100030111 its reverse (111030001), we get a palindrome (211060112).

The spelling of 100030111 in words is "one hundred million, thirty thousand, one hundred eleven".

Divisors: 1 727 137593 100030111