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100470427 = 227442601
BaseRepresentation
bin1011111110100…
…00111010011011
321000001102111221
411333100322123
5201210023202
613545232511
72326661461
oct577207233
9230042457
10100470427
1151792a12
1229792737
1317a79975
14d4b4831
158c49037
hex5fd0e9b

100470427 has 4 divisors (see below), whose sum is σ = 100913256. Its totient is φ = 100027600.

The previous prime is 100470379. The next prime is 100470431. The reversal of 100470427 is 724074001.

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 100470427 - 223 = 92081819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100470437) 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, 221074 + ... + 221527.

It is an arithmetic number, because the mean of its divisors is an integer number (25228314).

Almost surely, 2100470427 is an apocalyptic number.

100470427 is a deficient number, since it is larger than the sum of its proper divisors (442829).

100470427 is an equidigital number, since it uses as much as digits as its factorization.

100470427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442828.

The product of its (nonzero) digits is 1568, while the sum is 25.

The square root of 100470427 is about 10023.4937521804. The cubic root of 100470427 is about 464.8855879150.

The spelling of 100470427 in words is "one hundred million, four hundred seventy thousand, four hundred twenty-seven".

Divisors: 1 227 442601 100470427