Search a number
-
+
255752560 = 24572531231
BaseRepresentation
bin11110011111001…
…11100101110000
3122211020120120001
433033213211300
51010433040220
641213355344
76223601200
oct1717474560
9584216501
10255752560
11121402758
1271798b54
1340ca7b9b
1425d76400
15176bd80a
hexf3e7970

255752560 has 120 divisors (see below), whose sum is σ = 705329856. Its totient is φ = 85962240.

The previous prime is 255752543. The next prime is 255752591. The reversal of 255752560 is 65257552.

It is a happy number.

255752560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 207145 + ... + 208375.

Almost surely, 2255752560 is an apocalyptic number.

255752560 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 255752560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352664928).

255752560 is an abundant number, since it is smaller than the sum of its proper divisors (449577296).

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

255752560 is a wasteful number, since it uses less digits than its factorization.

255752560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 105000, while the sum is 37.

The square root of 255752560 is about 15992.2656306103. The cubic root of 255752560 is about 634.7557785294.

The spelling of 255752560 in words is "two hundred fifty-five million, seven hundred fifty-two thousand, five hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 53 56 70 80 98 106 112 140 196 212 245 265 280 371 392 424 490 530 560 742 784 848 980 1060 1231 1484 1855 1960 2120 2462 2597 2968 3710 3920 4240 4924 5194 5936 6155 7420 8617 9848 10388 12310 12985 14840 17234 19696 20776 24620 25970 29680 34468 41552 43085 49240 51940 60319 65243 68936 86170 98480 103880 120638 130486 137872 172340 207760 241276 260972 301595 326215 344680 456701 482552 521944 603190 652430 689360 913402 965104 1043888 1206380 1304860 1826804 2283505 2412760 2609720 3196907 3653608 4567010 4825520 5219440 6393814 7307216 9134020 12787628 15984535 18268040 25575256 31969070 36536080 51150512 63938140 127876280 255752560