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2990130823 = 31307931327
BaseRepresentation
bin1011001000111001…
…1100011010000111
321201101110101101001
42302032130122013
522110433141243
61212412514131
7134045456401
oct26216343207
97641411331
102990130823
1112a493a5a9
126b547b947
1338863a3a4
14205197b71
15127794a4d
hexb239c687

2990130823 has 8 divisors (see below), whose sum is σ = 3087687680. Its totient is φ = 2892642840.

The previous prime is 2990130821. The next prime is 2990130851. The reversal of 2990130823 is 3280310992.

2990130823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2990130823 - 21 = 2990130821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2990130821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79786 + ... + 111112.

It is an arithmetic number, because the mean of its divisors is an integer number (385960960).

Almost surely, 22990130823 is an apocalyptic number.

2990130823 is a deficient number, since it is larger than the sum of its proper divisors (97556857).

2990130823 is a wasteful number, since it uses less digits than its factorization.

2990130823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34437.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2990130823 is about 54682.0886854187. The cubic root of 2990130823 is about 1440.6662977155. Note that the first 3 decimals are identical.

The spelling of 2990130823 in words is "two billion, nine hundred ninety million, one hundred thirty thousand, eight hundred twenty-three".

Divisors: 1 31 3079 31327 95449 971137 96455833 2990130823