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2996621980 = 2251113621009
BaseRepresentation
bin1011001010011100…
…1101001010011100
321201211200011120021
42302213031022130
522114113400410
61213204001524
7134154603142
oct26247151234
97654604507
102996621980
1112a85734a0
126b76902a4
13389aa0b01
14205da7592
15128127eda
hexb29cd29c

2996621980 has 24 divisors (see below), whose sum is σ = 6864989040. Its totient is φ = 1089680640.

The previous prime is 2996621941. The next prime is 2996622001. The reversal of 2996621980 is 891266992.

2996621980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6810285 + ... + 6810724.

It is an arithmetic number, because the mean of its divisors is an integer number (286041210).

Almost surely, 22996621980 is an apocalyptic number.

2996621980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2996621980 is an abundant number, since it is smaller than the sum of its proper divisors (3868367060).

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

2996621980 is a wasteful number, since it uses less digits than its factorization.

2996621980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13621029 (or 13621027 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 2996621980 is about 54741.4101024078. The cubic root of 2996621980 is about 1441.7080394570.

The spelling of 2996621980 in words is "two billion, nine hundred ninety-six million, six hundred twenty-one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 13621009 27242018 54484036 68105045 136210090 149831099 272420180 299662198 599324396 749155495 1498310990 2996621980