Search a number
-
+
143387230 = 2572292627
BaseRepresentation
bin10001000101111…
…10101001011110
3100222210211022011
420202332221132
5243201342410
622121141434
73360525400
oct1042765136
9328724264
10143387230
1173a35a48
124002a87a
132392501c
1415086b70
15c8c518a
hex88bea5e

143387230 has 24 divisors (see below), whose sum is σ = 300236328. Its totient is φ = 49161168.

The previous prime is 143387219. The next prime is 143387263. The reversal of 143387230 is 32783341.

It is a junction number, because it is equal to n+sod(n) for n = 143387192 and 143387201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145824 + ... + 146803.

It is an arithmetic number, because the mean of its divisors is an integer number (12509847).

Almost surely, 2143387230 is an apocalyptic number.

143387230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143387230 is an abundant number, since it is smaller than the sum of its proper divisors (156849098).

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

143387230 is a wasteful number, since it uses less digits than its factorization.

143387230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292648 (or 292641 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 143387230 is about 11974.4406967507. The cubic root of 143387230 is about 523.4037441156.

The spelling of 143387230 in words is "one hundred forty-three million, three hundred eighty-seven thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 35 49 70 98 245 490 292627 585254 1463135 2048389 2926270 4096778 10241945 14338723 20483890 28677446 71693615 143387230