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492738880 = 26517531709
BaseRepresentation
bin11101010111101…
…001100101000000
31021100011201200011
4131113221211000
52002120121010
6120521034304
715132132334
oct3527514500
91240151604
10492738880
11233158017
12119025994
137b11208a
14496257c4
152d3d1a8a
hex1d5e9940

492738880 has 112 divisors (see below), whose sum is σ = 1266535440. Its totient is φ = 181895168.

The previous prime is 492738877. The next prime is 492738881. The reversal of 492738880 is 88837294.

It can be written as a sum of positive squares in 8 ways, for example, as 254016 + 492484864 = 504^2 + 22192^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492738881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287466 + ... + 289174.

Almost surely, 2492738880 is an apocalyptic number.

492738880 is a gapful number since it is divisible by the number (40) 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 492738880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633267720).

492738880 is an abundant number, since it is smaller than the sum of its proper divisors (773796560).

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

492738880 is a wasteful number, since it uses less digits than its factorization.

492738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 492738880 is about 22197.7224056884. The cubic root of 492738880 is about 789.8396726399.

The spelling of 492738880 in words is "four hundred ninety-two million, seven hundred thirty-eight thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 17 20 32 34 40 53 64 68 80 85 106 136 160 170 212 265 272 320 340 424 530 544 680 848 901 1060 1088 1360 1696 1709 1802 2120 2720 3392 3418 3604 4240 4505 5440 6836 7208 8480 8545 9010 13672 14416 16960 17090 18020 27344 28832 29053 34180 36040 54688 57664 58106 68360 72080 90577 109376 116212 136720 144160 145265 181154 232424 273440 288320 290530 362308 452885 464848 546880 581060 724616 905770 929696 1162120 1449232 1539809 1811540 1859392 2324240 2898464 3079618 3623080 4648480 5796928 6159236 7246160 7699045 9296960 12318472 14492320 15398090 24636944 28984640 30796180 49273888 61592360 98547776 123184720 246369440 492738880