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2990100320 = 25523978193
BaseRepresentation
bin1011001000111001…
…0100111101100000
321201101101211112022
42302032110331200
522110431202240
61212412121012
7134045301434
oct26216247540
97641354468
102990100320
1112a4919699
126b5466168
1338862953c
1420518a9c4
1512778a9b5
hexb2394f60

2990100320 has 48 divisors (see below), whose sum is σ = 7093759680. Its totient is φ = 1191020544.

The previous prime is 2990100293. The next prime is 2990100329. The reversal of 2990100320 is 230010992.

It is a self number, because there is not a number n which added to its sum of digits gives 2990100320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990100329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857 + ... + 77336.

It is an arithmetic number, because the mean of its divisors is an integer number (147786660).

Almost surely, 22990100320 is an apocalyptic number.

2990100320 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 2990100320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3546879840).

2990100320 is an abundant number, since it is smaller than the sum of its proper divisors (4103659360).

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

2990100320 is a wasteful number, since it uses less digits than its factorization.

2990100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78447 (or 78439 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 2990100320 is about 54681.8097725377. The cubic root of 2990100320 is about 1440.6613988448.

The spelling of 2990100320 in words is "two billion, nine hundred ninety million, one hundred thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 239 478 956 1195 1912 2390 3824 4780 7648 9560 19120 38240 78193 156386 312772 390965 625544 781930 1251088 1563860 2502176 3127720 6255440 12510880 18688127 37376254 74752508 93440635 149505016 186881270 299010032 373762540 598020064 747525080 1495050160 2990100320