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143222130 = 23255872711
BaseRepresentation
bin10001000100101…
…10010101110010
3100222111102211100
420202112111302
5243131102010
622113425230
73356240142
oct1042262562
9328442740
10143222130
11739329a7
123bb6b216
1323897b2c
1415042922
15c8912c0
hex8896572

143222130 has 48 divisors (see below), whose sum is σ = 373149504. Its totient is φ = 38113440.

The previous prime is 143222119. The next prime is 143222137. The reversal of 143222130 is 31222341.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (143222137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51475 + ... + 54185.

It is an arithmetic number, because the mean of its divisors is an integer number (7773948).

Almost surely, 2143222130 is an apocalyptic number.

143222130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143222130 is an abundant number, since it is smaller than the sum of its proper divisors (229927374).

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

143222130 is a wasteful number, since it uses less digits than its factorization.

143222130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3311 (or 3308 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 143222130 is about 11967.5448609980. The cubic root of 143222130 is about 523.2027798088.

Adding to 143222130 its reverse (31222341), we get a palindrome (174444471).

The spelling of 143222130 in words is "one hundred forty-three million, two hundred twenty-two thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 587 1174 1761 2711 2935 3522 5283 5422 5870 8133 8805 10566 13555 16266 17610 24399 26415 27110 40665 48798 52830 81330 121995 243990 1591357 3182714 4774071 7956785 9548142 14322213 15913570 23870355 28644426 47740710 71611065 143222130