Search a number
-
+
2872544920 = 235729173517
BaseRepresentation
bin1010101100110111…
…1000111010011000
321102012012101211121
42223031320322120
521340332414140
61153012335024
7131120141350
oct25315707230
97365171747
102872544920
111244527573
12682014474
1336a17a22b
141d3709b60
1511c2b964a
hexab378e98

2872544920 has 64 divisors (see below), whose sum is σ = 7391177280. Its totient is φ = 984254976.

The previous prime is 2872544891. The next prime is 2872544929. The reversal of 2872544920 is 294452782.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2872544929) 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, 815002 + ... + 818518.

It is an arithmetic number, because the mean of its divisors is an integer number (115487145).

Almost surely, 22872544920 is an apocalyptic number.

2872544920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2872544920 is an abundant number, since it is smaller than the sum of its proper divisors (4518632360).

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

2872544920 is a wasteful number, since it uses less digits than its factorization.

2872544920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452 (or 6448 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2872544920 is about 53596.1278452091. The cubic root of 2872544920 is about 1421.5286256202.

The spelling of 2872544920 in words is "two billion, eight hundred seventy-two million, five hundred forty-four thousand, nine hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 2917 3517 5834 7034 11668 14068 14585 17585 20419 23336 24619 28136 29170 35170 40838 49238 58340 70340 81676 98476 102095 116680 123095 140680 163352 196952 204190 246190 408380 492380 816760 984760 10259089 20518178 41036356 51295445 71813623 82072712 102590890 143627246 205181780 287254492 359068115 410363560 574508984 718136230 1436272460 2872544920