Search a number
-
+
143489070 = 23155
BaseRepresentation
bin10001000110101…
…11100000101110
3101000000000000000
420203113200232
5243213122240
622123245130
73361431324
oct1043274056
9330000000
10143489070
1173aa550a
12400797a6
132395c49a
14150b1d14
15c8e5430
hex88d782e

143489070 has 64 divisors (see below), whose sum is σ = 387420480. Its totient is φ = 38263752.

The previous prime is 143489057. The next prime is 143489117. The reversal of 143489070 is 70984341.

It is a happy number.

It is a super-2 number, since 2×1434890702 = 41178226418929800, which contains 22 as substring.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 28697812 + ... + 28697816.

It is an arithmetic number, because the mean of its divisors is an integer number (6053445).

Almost surely, 2143489070 is an apocalyptic number.

143489070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143489070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193710240).

143489070 is an abundant number, since it is smaller than the sum of its proper divisors (243931410).

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

143489070 is an frugal number, since it uses more digits than its factorization.

143489070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 143489070 is about 11978.6923326380. The cubic root of 143489070 is about 523.5276296777.

The spelling of 143489070 in words is "one hundred forty-three million, four hundred eighty-nine thousand, seventy".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 243 270 405 486 729 810 1215 1458 2187 2430 3645 4374 6561 7290 10935 13122 19683 21870 32805 39366 59049 65610 98415 118098 177147 196830 295245 354294 531441 590490 885735 1062882 1594323 1771470 2657205 3188646 4782969 5314410 7971615 9565938 14348907 15943230 23914845 28697814 47829690 71744535 143489070