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143464660 = 2257173233
BaseRepresentation
bin10001000110100…
…01100011010100
3100222221202111221
420203101203110
5243211332120
622122540124
73361300213
oct1043214324
9328852457
10143464660
1173a89139
1240067644
1323951341
14150a707a
15c8dd0aa
hex88d18d4

143464660 has 12 divisors (see below), whose sum is σ = 301275828. Its totient is φ = 57385856.

The previous prime is 143464627. The next prime is 143464663. The reversal of 143464660 is 66464341.

It can be written as a sum of positive squares in 2 ways, for example, as 23386896 + 120077764 = 4836^2 + 10958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143464663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3586597 + ... + 3586636.

It is an arithmetic number, because the mean of its divisors is an integer number (25106319).

Almost surely, 2143464660 is an apocalyptic number.

143464660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143464660 is an abundant number, since it is smaller than the sum of its proper divisors (157811168).

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

143464660 is a wasteful number, since it uses less digits than its factorization.

143464660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7173242 (or 7173240 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 143464660 is about 11977.6733967829. The cubic root of 143464660 is about 523.4979409259.

The spelling of 143464660 in words is "one hundred forty-three million, four hundred sixty-four thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 7173233 14346466 28692932 35866165 71732330 143464660