Search a number
-
+
2681828062740 = 2232519775629669
BaseRepresentation
bin100111000001101001011…
…010001011011000010100
3100111101021012122012002200
4213001221122023120110
5322414340441001430
65412003110404500
7364520125261461
oct47015132133024
910441235565080
102681828062740
119443a2032012
1237390a960730
13165b83c909c8
1493b305ac668
1549b61a67460
hex2706968b614

2681828062740 has 72 divisors (see below), whose sum is σ = 8176172364360. Its totient is φ = 711523916544.

The previous prime is 2681828062723. The next prime is 2681828062741. The reversal of 2681828062740 is 472608281862.

2681828062740 is a `hidden beast` number, since 2 + 6 + 8 + 1 + 8 + 2 + 8 + 0 + 627 + 4 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1891802183184 + 790025879556 = 1375428^2 + 888834^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681828062741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37779375 + ... + 37850294.

It is an arithmetic number, because the mean of its divisors is an integer number (113557949505).

Almost surely, 22681828062740 is an apocalyptic number.

2681828062740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2681828062740 is an abundant number, since it is smaller than the sum of its proper divisors (5494344301620).

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

2681828062740 is a wasteful number, since it uses less digits than its factorization.

2681828062740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75629881 (or 75629876 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 2681828062740 in words is "two trillion, six hundred eighty-one billion, eight hundred twenty-eight million, sixty-two thousand, seven hundred forty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 197 394 591 788 985 1182 1773 1970 2364 2955 3546 3940 5910 7092 8865 11820 17730 35460 75629669 151259338 226889007 302518676 378148345 453778014 680667021 756296690 907556028 1134445035 1361334042 1512593380 2268890070 2722668084 3403335105 4537780140 6806670210 13613340420 14899044793 29798089586 44697134379 59596179172 74495223965 89394268758 134091403137 148990447930 178788537516 223485671895 268182806274 297980895860 446971343790 536365612548 670457015685 893942687580 1340914031370 2681828062740