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131003250140 = 22571307715943
BaseRepresentation
bin111101000000001100…
…1101111010111011100
3110112010211201122002102
41322000121233113130
54121243313001030
6140103154144232
712315245152610
oct1720031572734
9415124648072
10131003250140
1150615a12884
1221480882078
13c4799ac179
1464aa821340
15361ae87c45
hex1e8066f5dc

131003250140 has 48 divisors (see below), whose sum is σ = 314648796672. Its totient is φ = 44880972096.

The previous prime is 131003250139. The next prime is 131003250149. The reversal of 131003250140 is 41052300131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131003250149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174992 + ... + 540951.

It is an arithmetic number, because the mean of its divisors is an integer number (6555183264).

Almost surely, 2131003250140 is an apocalyptic number.

131003250140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131003250140 is an abundant number, since it is smaller than the sum of its proper divisors (183645546532).

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

131003250140 is a wasteful number, since it uses less digits than its factorization.

131003250140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717266 (or 717264 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 131003250140 its reverse (41052300131), we get a palindrome (172055550271).

The spelling of 131003250140 in words is "one hundred thirty-one billion, three million, two hundred fifty thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 1307 2614 5228 6535 9149 13070 18298 26140 36596 45745 91490 182980 715943 1431886 2863772 3579715 5011601 7159430 10023202 14318860 20046404 25058005 50116010 100232020 935737501 1871475002 3742950004 4678687505 6550162507 9357375010 13100325014 18714750020 26200650028 32750812535 65501625070 131003250140