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145288486 = 2743241343
BaseRepresentation
bin10001010100011…
…10110100100110
3101010101102100001
420222032310212
5244143212421
622230011514
73412634410
oct1052166446
9333342301
10145288486
1175014432
12407a6b9a
132413c525
141541d9b0
15cb4d691
hex8a8ed26

145288486 has 16 divisors (see below), whose sum is σ = 254859264. Its totient is φ = 60818184.

The previous prime is 145288483. The next prime is 145288487. The reversal of 145288486 is 684882541.

It is a super-2 number, since 2×1452884862 = 42217488328344392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145288483) 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 7 ways as a sum of consecutive naturals, for example, 120070 + ... + 121273.

It is an arithmetic number, because the mean of its divisors is an integer number (15928704).

Almost surely, 2145288486 is an apocalyptic number.

145288486 is a deficient number, since it is larger than the sum of its proper divisors (109570778).

145288486 is a wasteful number, since it uses less digits than its factorization.

145288486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241395.

The product of its digits is 491520, while the sum is 46.

The square root of 145288486 is about 12053.5673557665. The cubic root of 145288486 is about 525.7069671446.

The spelling of 145288486 in words is "one hundred forty-five million, two hundred eighty-eight thousand, four hundred eighty-six".

Divisors: 1 2 7 14 43 86 301 602 241343 482686 1689401 3378802 10377749 20755498 72644243 145288486