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101423449 = 145169899
BaseRepresentation
bin1100000101110…
…01100101011001
321001211211211001
412002321211121
5201431022244
614021505001
72341041121
oct602714531
9231754731
10101423449
1152283a36
1229b72161
131802169a
14d681c81
158d865d4
hex60b9959

101423449 has 4 divisors (see below), whose sum is σ = 101494800. Its totient is φ = 101352100.

The previous prime is 101423447. The next prime is 101423453. The reversal of 101423449 is 944324101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101423449 - 21 = 101423447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101423447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33499 + ... + 36400.

It is an arithmetic number, because the mean of its divisors is an integer number (25373700).

Almost surely, 2101423449 is an apocalyptic number.

It is an amenable number.

101423449 is a deficient number, since it is larger than the sum of its proper divisors (71351).

101423449 is an equidigital number, since it uses as much as digits as its factorization.

101423449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71350.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 101423449 is about 10070.9209608655. The cubic root of 101423449 is about 466.3508704172.

The spelling of 101423449 in words is "one hundred one million, four hundred twenty-three thousand, four hundred forty-nine".

Divisors: 1 1451 69899 101423449