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2684768800 = 25527268489
BaseRepresentation
bin1010000000000110…
…0101001000100000
320221002212101102111
42200001211020200
520444300100200
61122223525104
7123350105200
oct24001451040
96832771374
102684768800
11115853359a
1262b159794
1333a2b2abc
141b67ca400
1510aa770ba
hexa0065220

2684768800 has 108 divisors (see below), whose sum is σ = 7624375290. Its totient is φ = 920478720.

The previous prime is 2684768789. The next prime is 2684768833. The reversal of 2684768800 is 88674862.

It can be written as a sum of positive squares in 3 ways, for example, as 2065157136 + 619611664 = 45444^2 + 24892^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4956 + ... + 73444.

Almost surely, 22684768800 is an apocalyptic number.

2684768800 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 2684768800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3812187645).

2684768800 is an abundant number, since it is smaller than the sum of its proper divisors (4939606490).

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

2684768800 is a wasteful number, since it uses less digits than its factorization.

2684768800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68523 (or 68503 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 49.

The square root of 2684768800 is about 51814.7546554068. The cubic root of 2684768800 is about 1389.8533047404.

The spelling of 2684768800 in words is "two billion, six hundred eighty-four million, seven hundred sixty-eight thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 49 50 56 70 80 98 100 112 140 160 175 196 200 224 245 280 350 392 400 490 560 700 784 800 980 1120 1225 1400 1568 1960 2450 2800 3920 4900 5600 7840 9800 19600 39200 68489 136978 273956 342445 479423 547912 684890 958846 1095824 1369780 1712225 1917692 2191648 2397115 2739560 3355961 3424450 3835384 4794230 5479120 6711922 6848900 7670768 9588460 10958240 11985575 13423844 13697800 15341536 16779805 19176920 23971150 26847688 27395600 33559610 38353840 47942300 53695376 54791200 67119220 76707680 83899025 95884600 107390752 134238440 167798050 191769200 268476880 335596100 383538400 536953760 671192200 1342384400 2684768800