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2072864560 = 245133495711
BaseRepresentation
bin111101110001101…
…0110011100110000
312100110110102121111
41323203112130300
513221123131220
6541404403104
7102240025624
oct17343263460
95313412544
102072864560
11974094908
1249a246494
132705a99a0
14159425184
15c1ea715a
hex7b8d6730

2072864560 has 80 divisors (see below), whose sum is σ = 5205916800. Its totient is φ = 763038720.

The previous prime is 2072864551. The next prime is 2072864561. The reversal of 2072864560 is 654682702.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2072864561) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 360105 + ... + 365815.

It is an arithmetic number, because the mean of its divisors is an integer number (65073960).

Almost surely, 22072864560 is an apocalyptic number.

2072864560 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 2072864560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2602958400).

2072864560 is an abundant number, since it is smaller than the sum of its proper divisors (3133052240).

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

2072864560 is a wasteful number, since it uses less digits than its factorization.

2072864560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6086 (or 6080 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2072864560 is about 45528.7223629216. The cubic root of 2072864560 is about 1275.0395087078.

The spelling of 2072864560 in words is "two billion, seventy-two million, eight hundred sixty-four thousand, five hundred sixty".

Divisors: 1 2 4 5 8 10 13 16 20 26 40 52 65 80 104 130 208 260 349 520 698 1040 1396 1745 2792 3490 4537 5584 5711 6980 9074 11422 13960 18148 22685 22844 27920 28555 36296 45370 45688 57110 72592 74243 90740 91376 114220 148486 181480 228440 296972 362960 371215 456880 593944 742430 1187888 1484860 1993139 2969720 3986278 5939440 7972556 9965695 15945112 19931390 25910807 31890224 39862780 51821614 79725560 103643228 129554035 159451120 207286456 259108070 414572912 518216140 1036432280 2072864560