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100031230000 = 2454131745263
BaseRepresentation
bin101110100101001010…
…0110111000000110000
3100120012100101222202101
41131022110313000300
53114330443330000
6113542000230144
710140603266032
oct1351224670060
9316170358671
10100031230000
1139472026719
121747830b354
139582125530
144bad26dc52
152906d57e6a
hex174a537030

100031230000 has 200 divisors, whose sum is σ = 276163449408. Its totient is φ = 34761216000.

The previous prime is 100031229971. The next prime is 100031230007. The reversal of 100031230000 is 32130001.

It is a tau number, because it is divible by the number of its divisors (200).

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

It is not an unprimeable number, because it can be changed into a prime (100031230007) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2187369 + ... + 2232631.

Almost surely, 2100031230000 is an apocalyptic number.

100031230000 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 100031230000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138081724704).

100031230000 is an abundant number, since it is smaller than the sum of its proper divisors (176132219408).

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

100031230000 is a wasteful number, since it uses less digits than its factorization.

100031230000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45321 (or 45300 counting only the distinct ones).

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

Adding to 100031230000 its reverse (32130001), we get a palindrome (100063360001).

Subtracting from 100031230000 its reverse (32130001), we obtain a palindrome (99999099999).

The spelling of 100031230000 in words is "one hundred billion, thirty-one million, two hundred thirty thousand".