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2990181087 = 32586756629
BaseRepresentation
bin1011001000111010…
…1000101011011111
321201101112221022200
42302032220223133
522110441243322
61212413542543
7134046056055
oct26216505337
97641487280
102990181087
1112a4974343
126b54a4a53
1338865722a
142051ac1d5
151277a48ac
hexb23a8adf

2990181087 has 12 divisors (see below), whose sum is σ = 4319962920. Its totient is φ = 1993079088.

The previous prime is 2990181067. The next prime is 2990181101. The reversal of 2990181087 is 7801810992.

It is not a de Polignac number, because 2990181087 - 211 = 2990179039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990181067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24489 + ... + 81117.

It is an arithmetic number, because the mean of its divisors is an integer number (359996910).

Almost surely, 22990181087 is an apocalyptic number.

2990181087 is a deficient number, since it is larger than the sum of its proper divisors (1329781833).

2990181087 is a wasteful number, since it uses less digits than its factorization.

2990181087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62502 (or 62499 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 2990181087 is about 54682.5482855362. The cubic root of 2990181087 is about 1440.6743701879.

The spelling of 2990181087 in words is "two billion, nine hundred ninety million, one hundred eighty-one thousand, eighty-seven".

Divisors: 1 3 9 5867 17601 52803 56629 169887 509661 332242343 996727029 2990181087