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2872491804 = 22327132367569
BaseRepresentation
bin1010101100110110…
…1011111100011100
321102012002200222100
42223031223330130
521340324214204
61153011245100
7131116530450
oct25315537434
97365080870
102872491804
1112444a0676
12681ba9790
1336a15bcc0
141d36d4660
1511c2a8a39
hexab36bf1c

2872491804 has 288 divisors, whose sum is σ = 9481006080. Its totient is φ = 712571904.

The previous prime is 2872491799. The next prime is 2872491833. The reversal of 2872491804 is 4081942782.

2872491804 is a `hidden beast` number, since 2 + 87 + 2 + 491 + 80 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2872491804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5048032 + ... + 5048600.

It is an arithmetic number, because the mean of its divisors is an integer number (32920160).

Almost surely, 22872491804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2872491804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4740503040).

2872491804 is an abundant number, since it is smaller than the sum of its proper divisors (6608514276).

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

2872491804 is a wasteful number, since it uses less digits than its factorization.

2872491804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 684 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 2872491804 is about 53595.6323220465. The cubic root of 2872491804 is about 1421.5198637752.

The spelling of 2872491804 in words is "two billion, eight hundred seventy-two million, four hundred ninety-one thousand, eight hundred four".