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131301500 = 22531123873
BaseRepresentation
bin1111101001110…
…00000001111100
3100011001210210112
413310320001330
5232103122000
621010125152
73153021131
oct764700174
9304053715
10131301500
1168130840
1237b807b8
1321282cc5
141361c588
15b7d9235
hex7d3807c

131301500 has 48 divisors (see below), whose sum is σ = 312844896. Its totient is φ = 47744000.

The previous prime is 131301487. The next prime is 131301551. The reversal of 131301500 is 5103131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6437 + ... + 17436.

It is an arithmetic number, because the mean of its divisors is an integer number (6517602).

Almost surely, 2131301500 is an apocalyptic number.

131301500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131301500 is an abundant number, since it is smaller than the sum of its proper divisors (181543396).

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

131301500 is a wasteful number, since it uses less digits than its factorization.

131301500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23903 (or 23891 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 131301500 is about 11458.6866612191. The cubic root of 131301500 is about 508.2646388107.

Adding to 131301500 its reverse (5103131), we get a palindrome (136404631).

The spelling of 131301500 in words is "one hundred thirty-one million, three hundred one thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 250 275 500 550 1100 1375 2750 5500 23873 47746 95492 119365 238730 262603 477460 525206 596825 1050412 1193650 1313015 2387300 2626030 2984125 5252060 5968250 6565075 11936500 13130150 26260300 32825375 65650750 131301500