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143129898 = 2328099829
BaseRepresentation
bin10001000011111…
…11110100101010
3100222022202022100
420201333310222
5243120124043
622111434230
73355404222
oct1041776452
9328282270
10143129898
117387a67a
123bb25976
1323864b62
141501b082
15c873cd3
hex887fd2a

143129898 has 24 divisors (see below), whose sum is σ = 310529700. Its totient is φ = 47646144.

The previous prime is 143129891. The next prime is 143129911. The reversal of 143129898 is 898921341.

It can be written as a sum of positive squares in 2 ways, for example, as 115283169 + 27846729 = 10737^2 + 5277^2 .

It is not an unprimeable number, because it can be changed into a prime (143129891) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9648 + ... + 19476.

Almost surely, 2143129898 is an apocalyptic number.

143129898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

143129898 is an abundant number, since it is smaller than the sum of its proper divisors (167399802).

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

143129898 is a wasteful number, since it uses less digits than its factorization.

143129898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10646 (or 10643 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 143129898 is about 11963.6908184724. The cubic root of 143129898 is about 523.0904452109.

It can be divided in two parts, 1431 and 29898, that added together give a square (31329 = 1772).

The spelling of 143129898 in words is "one hundred forty-three million, one hundred twenty-nine thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 9 18 809 1618 2427 4854 7281 9829 14562 19658 29487 58974 88461 176922 7951661 15903322 23854983 47709966 71564949 143129898