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2072801000 = 23532072801
BaseRepresentation
bin111101110001100…
…0110111011101000
312100110100012102102
41323203012323220
513221114113000
6541403152532
7102236342414
oct17343067350
95313305372
102072801000
11974051086
1249a215748
13270586a8a
14159409d44
15c1e933d5
hex7b8c6ee8

2072801000 has 32 divisors (see below), whose sum is σ = 4850356680. Its totient is φ = 829120000.

The previous prime is 2072800993. The next prime is 2072801023. The reversal of 2072801000 is 1082702.

It can be written as a sum of positive squares in 4 ways, for example, as 915304516 + 1157496484 = 30254^2 + 34022^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1035401 + ... + 1037400.

Almost surely, 22072801000 is an apocalyptic number.

2072801000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2072801000 is an abundant number, since it is smaller than the sum of its proper divisors (2777555680).

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

2072801000 is a wasteful number, since it uses less digits than its factorization.

2072801000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072822 (or 2072808 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 2072801000 is about 45528.0243366654. The cubic root of 2072801000 is about 1275.0264764462.

Adding to 2072801000 its reverse (1082702), we get a palindrome (2073883702).

The spelling of 2072801000 in words is "two billion, seventy-two million, eight hundred one thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 2072801 4145602 8291204 10364005 16582408 20728010 41456020 51820025 82912040 103640050 207280100 259100125 414560200 518200250 1036400500 2072801000