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1395243234420 = 2235715127181181
BaseRepresentation
bin10100010011011010111…
…110100011010001110100
311221101100220022001210220
4110103122332203101310
5140324424232000140
62544544344414340
7202542266545560
oct24233276432164
94841326261726
101395243234420
114987a0482972
121a64a81773b0
13a175628c399
144b75c9826a0
1526460752bd0
hex144dafa3474

1395243234420 has 192 divisors, whose sum is σ = 4510986289152. Its totient is φ = 315627840000.

The previous prime is 1395243234389. The next prime is 1395243234457. The reversal of 1395243234420 is 244323425931.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17146230 + ... + 17227410.

It is an arithmetic number, because the mean of its divisors is an integer number (23494720256).

Almost surely, 21395243234420 is an apocalyptic number.

1395243234420 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 1395243234420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2255493144576).

1395243234420 is an abundant number, since it is smaller than the sum of its proper divisors (3115743054732).

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

1395243234420 is a wasteful number, since it uses less digits than its factorization.

1395243234420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81622 (or 81620 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 42.

The spelling of 1395243234420 in words is "one trillion, three hundred ninety-five billion, two hundred forty-three million, two hundred thirty-four thousand, four hundred twenty".