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131010341323220 = 2256550517066161
BaseRepresentation
bin11101110010011100111000…
…110110110100000111010100
3122011212110120221110100210222
4131302130320312310013110
5114132433134334320340
61142345153034533512
736411120250231052
oct3562347066640724
9564773527410728
10131010341323220
11388201a0276337
121283a822297298
1358142b7176b98
14244cd11c171d2
151022d2db408b5
hex772738db41d4

131010341323220 has 12 divisors (see below), whose sum is σ = 275121716778804. Its totient is φ = 52404136529280.

The previous prime is 131010341323153. The next prime is 131010341323223. The reversal of 131010341323220 is 22323143010131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 95430977378884 + 35579363944336 = 9768878^2 + 5964844^2 .

It is a super-3 number, since 3×1310103413232203 (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 131010341323220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131010341323223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275258533061 + ... + 3275258533100.

It is an arithmetic number, because the mean of its divisors is an integer number (22926809731567).

Almost surely, 2131010341323220 is an apocalyptic number.

131010341323220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131010341323220 is an abundant number, since it is smaller than the sum of its proper divisors (144111375455584).

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

131010341323220 is a wasteful number, since it uses less digits than its factorization.

131010341323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6550517066170 (or 6550517066168 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 131010341323220 its reverse (22323143010131), we get a palindrome (153333484333351).

The spelling of 131010341323220 in words is "one hundred thirty-one trillion, ten billion, three hundred forty-one million, three hundred twenty-three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 6550517066161 13101034132322 26202068264644 32752585330805 65505170661610 131010341323220