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144605022 = 2387727481
BaseRepresentation
bin10001001111001…
…11111101011110
3101002002200210120
420213213331132
5244004330042
622203215410
73404056662
oct1047477536
9332080716
10144605022
1174697991
1240517566
1323c60403
14152c28a2
15ca65dec
hex89e7f5e

144605022 has 16 divisors (see below), whose sum is σ = 289550352. Its totient is φ = 48144960.

The previous prime is 144605017. The next prime is 144605023. The reversal of 144605022 is 220506441.

It is a super-2 number, since 2×1446050222 = 41821224775240968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144604983 and 144605001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144605023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8479 + ... + 19002.

It is an arithmetic number, because the mean of its divisors is an integer number (18096897).

Almost surely, 2144605022 is an apocalyptic number.

144605022 is an abundant number, since it is smaller than the sum of its proper divisors (144945330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144605022 is a wasteful number, since it uses less digits than its factorization.

144605022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28363.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 144605022 is about 12025.1828260530. The cubic root of 144605022 is about 524.8813300942.

The spelling of 144605022 in words is "one hundred forty-four million, six hundred five thousand, twenty-two".

Divisors: 1 2 3 6 877 1754 2631 5262 27481 54962 82443 164886 24100837 48201674 72302511 144605022