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1301996190 = 2351123171541
BaseRepresentation
bin100110110011010…
…1110001010011110
310100201221021000010
41031212232022132
510131302334230
6333110144050
744156533155
oct11546561236
93321837003
101301996190
11608a41010
12304052026
13179986761
14c4cc059c
15794869b0
hex4d9ae29e

1301996190 has 64 divisors (see below), whose sum is σ = 3557094912. Its totient is φ = 301910400.

The previous prime is 1301996173. The next prime is 1301996197. The reversal of 1301996190 is 916991031.

It is a happy number.

It is a super-2 number, since 2×13019961902 = 3390388157549032200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301996197) by changing a digit.

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, 78181 + ... + 93360.

It is an arithmetic number, because the mean of its divisors is an integer number (55579608).

Almost surely, 21301996190 is an apocalyptic number.

1301996190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1301996190 is an abundant number, since it is smaller than the sum of its proper divisors (2255098722).

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

1301996190 is a wasteful number, since it uses less digits than its factorization.

1301996190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171585.

The product of its (nonzero) digits is 13122, while the sum is 39.

The square root of 1301996190 is about 36083.1843107007. The cubic root of 1301996190 is about 1091.9512198285.

The spelling of 1301996190 in words is "one billion, three hundred one million, nine hundred ninety-six thousand, one hundred ninety".

Divisors: 1 2 3 5 6 10 11 15 22 23 30 33 46 55 66 69 110 115 138 165 230 253 330 345 506 690 759 1265 1518 2530 3795 7590 171541 343082 514623 857705 1029246 1715410 1886951 2573115 3773902 3945443 5146230 5660853 7890886 9434755 11321706 11836329 18869510 19727215 23672658 28304265 39454430 43399873 56608530 59181645 86799746 118363290 130199619 216999365 260399238 433998730 650998095 1301996190