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1448089901 = 2253164271
BaseRepresentation
bin101011001010000…
…0001100100101101
310201220211120220022
41112110001210231
510431202334101
6355405331525
750612363306
oct12624014455
93656746808
101448089901
11683455415
12344b66ba5
131a101863b
14da46d7ad
15871e3a1b
hex5650192d

1448089901 has 4 divisors (see below), whose sum is σ = 1448176704. Its totient is φ = 1448003100.

The previous prime is 1448089891. The next prime is 1448089927. The reversal of 1448089901 is 1099808441.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1099808441 = 2937924429.

It is a cyclic number.

It is not a de Polignac number, because 1448089901 - 26 = 1448089837 is a prime.

It is a super-2 number, since 2×14480899012 = 4193928722756379602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448089931) 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, 9605 + ... + 54666.

It is an arithmetic number, because the mean of its divisors is an integer number (362044176).

Almost surely, 21448089901 is an apocalyptic number.

It is an amenable number.

1448089901 is a deficient number, since it is larger than the sum of its proper divisors (86803).

1448089901 is an equidigital number, since it uses as much as digits as its factorization.

1448089901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86802.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 1448089901 is about 38053.7764354604. The cubic root of 1448089901 is about 1131.3539780661.

The spelling of 1448089901 in words is "one billion, four hundred forty-eight million, eighty-nine thousand, nine hundred one".

Divisors: 1 22531 64271 1448089901