Search a number
-
+
143090332 = 227113831213
BaseRepresentation
bin10001000011101…
…10001010011100
3100222020202000221
420201312022130
5243112342312
622110531124
73355150660
oct1041661234
9328222027
10143090332
1173852980
123bb06aa4
132384cb48
141500a8a0
15c867207
hex887629c

143090332 has 48 divisors (see below), whose sum is σ = 313270272. Its totient is φ = 55558080.

The previous prime is 143090317. The next prime is 143090333. The reversal of 143090332 is 233090341.

It is a happy number.

It is a super-2 number, since 2×1430903322 = 40949686223740448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143090297 and 143090306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143090333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117358 + ... + 118570.

It is an arithmetic number, because the mean of its divisors is an integer number (6526464).

Almost surely, 2143090332 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 143090332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156635136).

143090332 is an abundant number, since it is smaller than the sum of its proper divisors (170179940).

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

143090332 is a wasteful number, since it uses less digits than its factorization.

143090332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 143090332 is about 11962.0371174813. The cubic root of 143090332 is about 523.0422407379.

Subtracting 143090332 from its reverse (233090341), we obtain a palindrome (90000009).

The spelling of 143090332 in words is "one hundred forty-three million, ninety thousand, three hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 383 766 1213 1532 2426 2681 4213 4852 5362 8426 8491 10724 13343 16852 16982 26686 29491 33964 53372 58982 93401 117964 186802 373604 464579 929158 1858316 3252053 5110369 6504106 10220738 13008212 20441476 35772583 71545166 143090332