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143434984 = 237111713697
BaseRepresentation
bin10001000110010…
…10010011101000
3100222220020210211
420203022103220
5243204404414
622122150504
73361114540
oct1043122350
9328806724
10143434984
1173a68910
1240052434
1323940994
141509a320
15c8d43c4
hex88ca4e8

143434984 has 64 divisors (see below), whose sum is σ = 355052160. Its totient is φ = 52592640.

The previous prime is 143434939. The next prime is 143434987. The reversal of 143434984 is 489434341.

It is not an unprimeable number, because it can be changed into a prime (143434987) 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 15 ways as a sum of consecutive naturals, for example, 3624 + ... + 17320.

It is an arithmetic number, because the mean of its divisors is an integer number (5547690).

Almost surely, 2143434984 is an apocalyptic number.

143434984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143434984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177526080).

143434984 is an abundant number, since it is smaller than the sum of its proper divisors (211617176).

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

143434984 is a wasteful number, since it uses less digits than its factorization.

143434984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13738 (or 13734 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 143434984 is about 11976.4345278551. The cubic root of 143434984 is about 523.4618428462.

The spelling of 143434984 in words is "one hundred forty-three million, four hundred thirty-four thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 11 14 17 22 28 34 44 56 68 77 88 119 136 154 187 238 308 374 476 616 748 952 1309 1496 2618 5236 10472 13697 27394 54788 95879 109576 150667 191758 232849 301334 383516 465698 602668 767032 931396 1054669 1205336 1629943 1862792 2109338 2561339 3259886 4218676 5122678 6519772 8437352 10245356 13039544 17929373 20490712 35858746 71717492 143434984