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2978340324 = 223248195027
BaseRepresentation
bin1011000110000101…
…1101110111100100
321200120021100211220
42301201131313210
522044423342244
61211312100340
7133543321641
oct26141356744
97616240756
102978340324
111299217193
126b15346b0
1338606c86b
142037a8dc8
15126716319
hexb185dde4

2978340324 has 12 divisors (see below), whose sum is σ = 6949460784. Its totient is φ = 992780104.

The previous prime is 2978340301. The next prime is 2978340329. The reversal of 2978340324 is 4230438792.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×29783403242 = 17741022171128849952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2978340329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124097502 + ... + 124097525.

It is an arithmetic number, because the mean of its divisors is an integer number (579121732).

Almost surely, 22978340324 is an apocalyptic number.

It is an amenable number.

2978340324 is an abundant number, since it is smaller than the sum of its proper divisors (3971120460).

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

2978340324 is a wasteful number, since it uses less digits than its factorization.

2978340324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248195034 (or 248195032 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 2978340324 is about 54574.1726826894. The cubic root of 2978340324 is about 1438.7702212711.

It can be divided in two parts, 29783 and 40324, that added together give a palindrome (70107).

The spelling of 2978340324 in words is "two billion, nine hundred seventy-eight million, three hundred forty thousand, three hundred twenty-four".

Divisors: 1 2 3 4 6 12 248195027 496390054 744585081 992780108 1489170162 2978340324