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2990522880 = 29325315379
BaseRepresentation
bin1011001000111111…
…1100001000000000
321201102012022011200
42302033330020000
522111033213010
61212425141200
7134052011412
oct26217741000
97642168150
102990522880
1112a5088114
126b562a800
13388746987
1420525a9b2
15127820cc0
hexb23fc200

2990522880 has 480 divisors, whose sum is σ = 11030722560. Its totient is φ = 747601920.

The previous prime is 2990522869. The next prime is 2990522881. The reversal of 2990522880 is 882250992.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990522881) 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 47 ways as a sum of consecutive naturals, for example, 37854681 + ... + 37854759.

It is an arithmetic number, because the mean of its divisors is an integer number (22980672).

Almost surely, 22990522880 is an apocalyptic number.

2990522880 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 2990522880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5515361280).

2990522880 is an abundant number, since it is smaller than the sum of its proper divisors (8040199680).

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

2990522880 is a wasteful number, since it uses less digits than its factorization.

2990522880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 2990522880 is about 54685.6734437823. The cubic root of 2990522880 is about 1440.7292602475.

The spelling of 2990522880 in words is "two billion, nine hundred ninety million, five hundred twenty-two thousand, eight hundred eighty".