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2961597380 = 2257173122279
BaseRepresentation
bin1011000010000110…
…0110001111000100
321122101202201211212
42300201212033010
522031132104010
61205513150552
7133251106460
oct26041461704
97571681755
102961597380
11128a820a45
126a79bb458
13382759ab1
1420148b4a0
1512500a505
hexb08663c4

2961597380 has 48 divisors (see below), whose sum is σ = 7148977920. Its totient is φ = 1009527168.

The previous prime is 2961597361. The next prime is 2961597383. The reversal of 2961597380 is 837951692.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2961597383) 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, 36920 + ... + 85359.

It is an arithmetic number, because the mean of its divisors is an integer number (148937040).

Almost surely, 22961597380 is an apocalyptic number.

2961597380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2961597380 is an abundant number, since it is smaller than the sum of its proper divisors (4187380540).

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

2961597380 is a wasteful number, since it uses less digits than its factorization.

2961597380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122468 (or 122466 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 2961597380 is about 54420.5602690748. The cubic root of 2961597380 is about 1436.0691049991.

The spelling of 2961597380 in words is "two billion, nine hundred sixty-one million, five hundred ninety-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 173 346 692 865 1211 1730 2422 3460 4844 6055 12110 24220 122279 244558 489116 611395 855953 1222790 1711906 2445580 3423812 4279765 8559530 17119060 21154267 42308534 84617068 105771335 148079869 211542670 296159738 423085340 592319476 740399345 1480798690 2961597380