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131001030000 = 243354547887
BaseRepresentation
bin111101000000001000…
…1010001010101110000
3110112010200112211122000
41322000101101111300
54121242230430000
6140103034414000
712315220245111
oct1720021212560
9415120484560
10131001030000
1150614736855
122147bb91300
13c4793b2789
1464aa404208
15361ab9a000
hex1e80451570

131001030000 has 400 divisors, whose sum is σ = 471266146560. Its totient is φ = 34830432000.

The previous prime is 131001029989. The next prime is 131001030077. The reversal of 131001030000 is 30100131.

It is a tau number, because it is divible by the number of its divisors (400).

It is a super-2 number, since 2×1310010300002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 147689557 + ... + 147690443.

Almost surely, 2131001030000 is an apocalyptic number.

131001030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131001030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235633073280).

131001030000 is an abundant number, since it is smaller than the sum of its proper divisors (340265116560).

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

131001030000 is an equidigital number, since it uses as much as digits as its factorization.

131001030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

Adding to 131001030000 its reverse (30100131), we get a palindrome (131031130131).

The spelling of 131001030000 in words is "one hundred thirty-one billion, one million, thirty thousand".