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252144060 = 223571921663
BaseRepresentation
bin11110000011101…
…10100110111100
3122120110020121220
433001312212330
51004022102220
641004153340
76151121610
oct1701664674
9576406556
10252144060
1111a368623
1270538850
134031358c
14256b7340
1517209540
hexf0769bc

252144060 has 144 divisors (see below), whose sum is σ = 852074496. Its totient is φ = 54566784.

The previous prime is 252144059. The next prime is 252144071. The reversal of 252144060 is 60441252.

It is a self number, because there is not a number n which added to its sum of digits gives 252144060.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 150789 + ... + 152451.

It is an arithmetic number, because the mean of its divisors is an integer number (5917184).

Almost surely, 2252144060 is an apocalyptic number.

252144060 is a gapful number since it is divisible by the number (20) 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 252144060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (426037248).

252144060 is an abundant number, since it is smaller than the sum of its proper divisors (599930436).

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

252144060 is a wasteful number, since it uses less digits than its factorization.

252144060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1720 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 252144060 is about 15879.0446815922. The cubic root of 252144060 is about 631.7562985785.

The spelling of 252144060 in words is "two hundred fifty-two million, one hundred forty-four thousand, sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 42 57 60 70 76 84 95 105 114 133 140 190 210 228 266 285 361 380 399 420 532 570 665 722 798 1083 1140 1330 1444 1596 1663 1805 1995 2166 2527 2660 3326 3610 3990 4332 4989 5054 5415 6652 7220 7581 7980 8315 9978 10108 10830 11641 12635 15162 16630 19956 21660 23282 24945 25270 30324 31597 33260 34923 37905 46564 49890 50540 58205 63194 69846 75810 94791 99780 116410 126388 139692 151620 157985 174615 189582 221179 232820 315970 349230 379164 442358 473955 600343 631940 663537 698460 884716 947910 1105895 1200686 1327074 1801029 1895820 2211790 2401372 2654148 3001715 3317685 3602058 4202401 4423580 6003430 6635370 7204116 8404802 9005145 12006860 12607203 13270740 16809604 18010290 21012005 25214406 36020580 42024010 50428812 63036015 84048020 126072030 252144060