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131203000 = 2353131203
BaseRepresentation
bin1111101000111…
…11111110111000
3100010212210200101
413310133332320
5232041444000
621004045144
73152131015
oct764377670
9303783611
10131203000
1168073835
1237b337b4
132124a216
14135d470c
15b7b9e6a
hex7d1ffb8

131203000 has 32 divisors (see below), whose sum is σ = 307017360. Its totient is φ = 52480800.

The previous prime is 131202949. The next prime is 131203003. The reversal of 131203000 is 302131.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131203003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 64602 + ... + 66601.

Almost surely, 2131203000 is an apocalyptic number.

131203000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131203000 is an abundant number, since it is smaller than the sum of its proper divisors (175814360).

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

131203000 is a wasteful number, since it uses less digits than its factorization.

131203000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131224 (or 131210 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 131203000 is about 11454.3878055529. The cubic root of 131203000 is about 508.1375100493.

Adding to 131203000 its reverse (302131), we get a palindrome (131505131).

The spelling of 131203000 in words is "one hundred thirty-one million, two hundred three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 1000 131203 262406 524812 656015 1049624 1312030 2624060 3280075 5248120 6560150 13120300 16400375 26240600 32800750 65601500 131203000