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1906232970 = 235372716337
BaseRepresentation
bin111000110011110…
…1100111010001010
311220211220200001010
41301213230322022
512400443423340
6513053104350
765144466345
oct16147547212
94824820033
101906232970
11899023054
124524880b6
13244c06905
1414124b45c
15b253eb80
hex719ece8a

1906232970 has 64 divisors (see below), whose sum is σ = 4716688896. Its totient is φ = 492687360.

The previous prime is 1906232963. The next prime is 1906233011. The reversal of 1906232970 is 792326091.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 297642 + ... + 303978.

It is an arithmetic number, because the mean of its divisors is an integer number (73698264).

Almost surely, 21906232970 is an apocalyptic number.

1906232970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1906232970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358344448).

1906232970 is an abundant number, since it is smaller than the sum of its proper divisors (2810455926).

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

1906232970 is a wasteful number, since it uses less digits than its factorization.

1906232970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6655.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 1906232970 is about 43660.4279640042. The cubic root of 1906232970 is about 1239.9152235659.

The spelling of 1906232970 in words is "one billion, nine hundred six million, two hundred thirty-two thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 271 370 542 555 813 1110 1355 1626 2710 4065 6337 8130 10027 12674 19011 20054 30081 31685 38022 50135 60162 63370 95055 100270 150405 190110 234469 300810 468938 703407 1172345 1406814 1717327 2344690 3434654 3517035 5151981 7034070 8586635 10303962 17173270 25759905 51519810 63541099 127082198 190623297 317705495 381246594 635410990 953116485 1906232970