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31379150 = 2521159967
BaseRepresentation
bin111011110110…
…0111011001110
32012001020002202
41313230323032
531013113100
63040321502
7530501255
oct167547316
965036082
1031379150
1116792690
12a613292
13666895a
14424b79c
152b4c7d5
hex1decece

31379150 has 48 divisors (see below), whose sum is σ = 64817280. Its totient is φ = 11205600.

The previous prime is 31379143. The next prime is 31379167. The reversal of 31379150 is 5197313.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 31967 + ... + 32933.

It is an arithmetic number, because the mean of its divisors is an integer number (1350360).

Almost surely, 231379150 is an apocalyptic number.

31379150 is an abundant number, since it is smaller than the sum of its proper divisors (33438130).

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

31379150 is a wasteful number, since it uses less digits than its factorization.

31379150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 31379150 is about 5601.7095604824. The cubic root of 31379150 is about 315.4135828882.

The spelling of 31379150 in words is "thirty-one million, three hundred seventy-nine thousand, one hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 59 110 118 275 295 550 590 649 967 1298 1475 1934 2950 3245 4835 6490 9670 10637 16225 21274 24175 32450 48350 53185 57053 106370 114106 265925 285265 531850 570530 627583 1255166 1426325 2852650 3137915 6275830 15689575 31379150