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143144040 = 233513891031
BaseRepresentation
bin10001000100000…
…11010001101000
3100222100110201010
420202003101220
5243121102130
622112023520
73355463364
oct1042032150
9328313633
10143144040
117388a266
123bb31ba0
132386b420
14150222a4
15c8780b0
hex8883468

143144040 has 128 divisors (see below), whose sum is σ = 468115200. Its totient is φ = 34805760.

The previous prime is 143144011. The next prime is 143144101. The reversal of 143144040 is 40441341.

It is a junction number, because it is equal to n+sod(n) for n = 143143998 and 143144016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138325 + ... + 139355.

It is an arithmetic number, because the mean of its divisors is an integer number (3657150).

Almost surely, 2143144040 is an apocalyptic number.

143144040 is a gapful number since it is divisible by the number (10) 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 143144040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234057600).

143144040 is an abundant number, since it is smaller than the sum of its proper divisors (324971160).

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

143144040 is a wasteful number, since it uses less digits than its factorization.

143144040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 143144040 is about 11964.2818422169. The cubic root of 143144040 is about 523.1076726888.

Adding to 143144040 its reverse (40441341), we get a palindrome (183585381).

The spelling of 143144040 in words is "one hundred forty-three million, one hundred forty-four thousand, forty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 89 104 120 130 156 178 195 260 267 312 356 390 445 520 534 712 780 890 1031 1068 1157 1335 1560 1780 2062 2136 2314 2670 3093 3471 3560 4124 4628 5155 5340 5785 6186 6942 8248 9256 10310 10680 11570 12372 13403 13884 15465 17355 20620 23140 24744 26806 27768 30930 34710 40209 41240 46280 53612 61860 67015 69420 80418 91759 107224 123720 134030 138840 160836 183518 201045 268060 275277 321672 367036 402090 458795 536120 550554 734072 804180 917590 1101108 1192867 1376385 1608360 1835180 2202216 2385734 2752770 3578601 3670360 4771468 5505540 5964335 7157202 9542936 11011080 11928670 14314404 17893005 23857340 28628808 35786010 47714680 71572020 143144040