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100404023 = 177974761
BaseRepresentation
bin1011111110000…
…00101100110111
320222221001102112
411333000230313
5201200412043
613544001235
72326264046
oct577005467
9228831375
10100404023
1151748035
122976021b
1317a55685
14d49855d
158c34518
hex5fc0b37

100404023 has 8 divisors (see below), whose sum is σ = 107657280. Its totient is φ = 93300480.

The previous prime is 100404019. The next prime is 100404049. The reversal of 100404023 is 320404001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100404023 - 22 = 100404019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100403989 and 100404007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100404013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36038 + ... + 38723.

It is an arithmetic number, because the mean of its divisors is an integer number (13457160).

Almost surely, 2100404023 is an apocalyptic number.

100404023 is a deficient number, since it is larger than the sum of its proper divisors (7253257).

100404023 is an equidigital number, since it uses as much as digits as its factorization.

100404023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74857.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 100404023 is about 10020.1807867922. The cubic root of 100404023 is about 464.7831462744.

Adding to 100404023 its reverse (320404001), we get a palindrome (420808024).

The spelling of 100404023 in words is "one hundred million, four hundred four thousand, twenty-three".

Divisors: 1 17 79 1343 74761 1270937 5906119 100404023