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131401450 = 2528331663
BaseRepresentation
bin1111101010100…
…00011011101010
3100011020212220101
413311100123222
5232114321300
621012220014
73153615415
oct765203352
9304225811
10131401450
1168199944
123800a60a
13212b964b
1413646b7c
15b808b6a
hex7d506ea

131401450 has 24 divisors (see below), whose sum is σ = 247359168. Its totient is φ = 51925680.

The previous prime is 131401441. The next prime is 131401451. The reversal of 131401450 is 54104131.

It is not an unprimeable number, because it can be changed into a prime (131401451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11682 + ... + 19981.

It is an arithmetic number, because the mean of its divisors is an integer number (10306632).

Almost surely, 2131401450 is an apocalyptic number.

131401450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131401450 is a deficient number, since it is larger than the sum of its proper divisors (115957718).

131401450 is a wasteful number, since it uses less digits than its factorization.

131401450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31758 (or 31753 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 131401450 is about 11463.0471516085. The cubic root of 131401450 is about 508.3935740367.

Adding to 131401450 its reverse (54104131), we get a palindrome (185505581).

The spelling of 131401450 in words is "one hundred thirty-one million, four hundred one thousand, four hundred fifty".

Divisors: 1 2 5 10 25 50 83 166 415 830 2075 4150 31663 63326 158315 316630 791575 1583150 2628029 5256058 13140145 26280290 65700725 131401450