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1448190985 = 51717037541
BaseRepresentation
bin101011001010001…
…1010010000001001
310201221000201120011
41112110122100021
510431214102420
6355411431521
750613264103
oct12624322011
93657021504
101448190985
1168351435a
12344bb55a1
131a1052657
14da498573
158721395a
hex5651a409

1448190985 has 8 divisors (see below), whose sum is σ = 1840054536. Its totient is φ = 1090402560.

The previous prime is 1448190973. The next prime is 1448191007. The reversal of 1448190985 is 5890918441.

It can be written as a sum of positive squares in 4 ways, for example, as 193543744 + 1254647241 = 13912^2 + 35421^2 .

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

It is not a de Polignac number, because 1448190985 - 27 = 1448190857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8518686 + ... + 8518855.

It is an arithmetic number, because the mean of its divisors is an integer number (230006817).

Almost surely, 21448190985 is an apocalyptic number.

It is an amenable number.

1448190985 is a deficient number, since it is larger than the sum of its proper divisors (391863551).

1448190985 is a wasteful number, since it uses less digits than its factorization.

1448190985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17037563.

The product of its (nonzero) digits is 414720, while the sum is 49.

The square root of 1448190985 is about 38055.1045853247. The cubic root of 1448190985 is about 1131.3803021971.

The spelling of 1448190985 in words is "one billion, four hundred forty-eight million, one hundred ninety thousand, nine hundred eighty-five".

Divisors: 1 5 17 85 17037541 85187705 289638197 1448190985