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143964368 = 24194431069
BaseRepresentation
bin10001001010010…
…11100011010000
3101000220010222122
420211023203100
5243323324433
622141353412
73365451122
oct1045134320
9330803878
10143964368
117429a619
1240268868
1323a97922
1415197212
15c98b198
hex894b8d0

143964368 has 40 divisors (see below), whose sum is σ = 294549600. Its totient is φ = 67976064.

The previous prime is 143964367. The next prime is 143964391. The reversal of 143964368 is 863469341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143964367) 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 7 ways as a sum of consecutive naturals, for example, 134138 + ... + 135206.

It is an arithmetic number, because the mean of its divisors is an integer number (7363740).

Almost surely, 2143964368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143964368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147274800).

143964368 is an abundant number, since it is smaller than the sum of its proper divisors (150585232).

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

143964368 is a wasteful number, since it uses less digits than its factorization.

143964368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539 (or 1533 counting only the distinct ones).

The product of its digits is 373248, while the sum is 44.

The square root of 143964368 is about 11998.5152414788. The cubic root of 143964368 is about 524.1050427489.

The spelling of 143964368 in words is "one hundred forty-three million, nine hundred sixty-four thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 16 19 38 76 152 304 443 886 1069 1772 2138 3544 4276 7088 8417 8552 16834 17104 20311 33668 40622 67336 81244 134672 162488 324976 473567 947134 1894268 3788536 7577072 8997773 17995546 35991092 71982184 143964368