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2972889760 = 255293072087
BaseRepresentation
bin1011000100110010…
…1011001010100000
321200012000110002011
42301030223022200
522042024433020
61210555202304
7133446101041
oct26114531240
97605013064
102972889760
111296134095
126ab746394
13384bb1989
14202b8a8c8
15125edb35a
hexb132b2a0

2972889760 has 96 divisors (see below), whose sum is σ = 7292799360. Its totient is φ = 1143862272.

The previous prime is 2972889749. The next prime is 2972889769. The reversal of 2972889760 is 679882792.

It is a super-2 number, since 2×29728897602 = 17676147050225715200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 2972889695 and 2972889704.

It is not an unprimeable number, because it can be changed into a prime (2972889769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1423437 + ... + 1425523.

It is an arithmetic number, because the mean of its divisors is an integer number (75966660).

Almost surely, 22972889760 is an apocalyptic number.

2972889760 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 2972889760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3646399680).

2972889760 is an abundant number, since it is smaller than the sum of its proper divisors (4319909600).

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

2972889760 is a wasteful number, since it uses less digits than its factorization.

2972889760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2438 (or 2430 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 58.

The square root of 2972889760 is about 54524.2126032096. The cubic root of 2972889760 is about 1437.8920030856.

The spelling of 2972889760 in words is "two billion, nine hundred seventy-two million, eight hundred eighty-nine thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 80 116 145 160 232 290 307 464 580 614 928 1160 1228 1535 2087 2320 2456 3070 4174 4640 4912 6140 8348 8903 9824 10435 12280 16696 17806 20870 24560 33392 35612 41740 44515 49120 60523 66784 71224 83480 89030 121046 142448 166960 178060 242092 284896 302615 333920 356120 484184 605230 640709 712240 968368 1210460 1281418 1424480 1936736 2420920 2562836 3203545 4841840 5125672 6407090 9683680 10251344 12814180 18580561 20502688 25628360 37161122 51256720 74322244 92902805 102513440 148644488 185805610 297288976 371611220 594577952 743222440 1486444880 2972889760