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143168958 = 2341994441
BaseRepresentation
bin10001000100010…
…01010110111110
3100222101201220000
420202021112332
5243122401313
622112335130
73355626132
oct1042112676
9328351800
10143168958
11738a6a59
123bb444a6
132387987a
141502b3c2
15c880673
hex88895be

143168958 has 40 divisors (see below), whose sum is σ = 322489200. Its totient is φ = 47472480.

The previous prime is 143168957. The next prime is 143168959. The reversal of 143168958 is 859861341.

It is an interprime number because it is at equal distance from previous prime (143168957) and next prime (143168959).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143168957) 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 19 ways as a sum of consecutive naturals, for example, 30018 + ... + 34458.

It is an arithmetic number, because the mean of its divisors is an integer number (8062230).

Almost surely, 2143168958 is an apocalyptic number.

143168958 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143168958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161244600).

143168958 is an abundant number, since it is smaller than the sum of its proper divisors (179320242).

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

143168958 is a wasteful number, since it uses less digits than its factorization.

143168958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4654 (or 4645 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 143168958 is about 11965.3231464930. The cubic root of 143168958 is about 523.1380244955.

The spelling of 143168958 in words is "one hundred forty-three million, one hundred sixty-eight thousand, nine hundred fifty-eight".

Divisors: 1 2 3 6 9 18 27 54 81 162 199 398 597 1194 1791 3582 4441 5373 8882 10746 13323 16119 26646 32238 39969 79938 119907 239814 359721 719442 883759 1767518 2651277 5302554 7953831 15907662 23861493 47722986 71584479 143168958