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143142524 = 227223113281
BaseRepresentation
bin10001000100000…
…10111001111100
3100222100101121222
420202002321330
5243121030044
622112012512
73355456100
oct1042027174
9328311558
10143142524
1173889108
123bb31138
132386a825
1415021900
15c8778ee
hex8882e7c

143142524 has 72 divisors (see below), whose sum is σ = 307849248. Its totient is φ = 57953280.

The previous prime is 143142511. The next prime is 143142557. The reversal of 143142524 is 425241341.

It is a junction number, because it is equal to n+sod(n) for n = 143142493 and 143142502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 509264 + ... + 509544.

It is an arithmetic number, because the mean of its divisors is an integer number (4275684).

Almost surely, 2143142524 is an apocalyptic number.

143142524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143142524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153924624).

143142524 is an abundant number, since it is smaller than the sum of its proper divisors (164706724).

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

143142524 is a wasteful number, since it uses less digits than its factorization.

143142524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 426 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 143142524 is about 11964.2184868047. The cubic root of 143142524 is about 523.1058259848.

Adding to 143142524 its reverse (425241341), we get a palindrome (568383865).

The spelling of 143142524 in words is "one hundred forty-three million, one hundred forty-two thousand, five hundred twenty-four".

Divisors: 1 2 4 7 14 23 28 46 49 92 98 113 161 196 226 281 322 452 562 644 791 1124 1127 1582 1967 2254 2599 3164 3934 4508 5198 5537 6463 7868 10396 11074 12926 13769 18193 22148 25852 27538 31753 36386 45241 55076 63506 72772 90482 127012 127351 180964 222271 254702 316687 444542 509404 633374 730319 889084 1266748 1460638 1555897 2921276 3111794 5112233 6223588 10224466 20448932 35785631 71571262 143142524