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149930990878 = 2379197798141
BaseRepresentation
bin1000101110100010010…
…1010101110100011110
3112022222221121111011011
42023220211111310132
54424024313202003
6152513301245434
713555300252324
oct2135045256436
9468887544134
10149930990878
1158649154619
122508370387a
13111a5199966
147384549d14
153d779ec46d
hex22e8955d1e

149930990878 has 8 divisors (see below), whose sum is σ = 225489881880. Its totient is φ = 74767696920.

The previous prime is 149930990863. The next prime is 149930990899. The reversal of 149930990878 is 878099039941.

149930990878 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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98898313 + ... + 98899828.

It is an arithmetic number, because the mean of its divisors is an integer number (28186235235).

Almost surely, 2149930990878 is an apocalyptic number.

149930990878 is a deficient number, since it is larger than the sum of its proper divisors (75558891002).

149930990878 is a wasteful number, since it uses less digits than its factorization.

149930990878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197798522.

The product of its (nonzero) digits is 35271936, while the sum is 67.

The spelling of 149930990878 in words is "one hundred forty-nine billion, nine hundred thirty million, nine hundred ninety thousand, eight hundred seventy-eight".

Divisors: 1 2 379 758 197798141 395596282 74965495439 149930990878