Search a number
-
+
26648710480 = 2457471012489
BaseRepresentation
bin11000110100011000…
…110000110101010000
32112210012020202102001
4120310120300311100
5414034032213410
620124154203344
71632244205320
oct306430606520
975705222361
1026648710480
1110335558677
1251b8723554
132688c95752
14140b31b280
15a5e7e433a
hex634630d50

26648710480 has 80 divisors (see below), whose sum is σ = 72316085760. Its totient is φ = 8942294016.

The previous prime is 26648710463. The next prime is 26648710489. The reversal of 26648710480 is 8401784662.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 26648710480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26648710489) 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, 479925 + ... + 532564.

It is an arithmetic number, because the mean of its divisors is an integer number (903951072).

Almost surely, 226648710480 is an apocalyptic number.

26648710480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26648710480 is an abundant number, since it is smaller than the sum of its proper divisors (45667375280).

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

26648710480 is a wasteful number, since it uses less digits than its factorization.

26648710480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012556 (or 1012550 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 26648710480 in words is "twenty-six billion, six hundred forty-eight million, seven hundred ten thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 47 56 70 80 94 112 140 188 235 280 329 376 470 560 658 752 940 1316 1645 1880 2632 3290 3760 5264 6580 13160 26320 1012489 2024978 4049956 5062445 7087423 8099912 10124890 14174846 16199824 20249780 28349692 35437115 40499560 47586983 56699384 70874230 80999120 95173966 113398768 141748460 190347932 237934915 283496920 333108881 380695864 475869830 566993840 666217762 761391728 951739660 1332435524 1665544405 1903479320 2664871048 3331088810 3806958640 5329742096 6662177620 13324355240 26648710480