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1428240197592 = 2334138311318077
BaseRepresentation
bin10100110010001001101…
…111111110011111011000
312001112112111220110210000
4110302021233332133120
5141400013442310332
63012042520053000
7205121060241435
oct24621157763730
95045474813700
101428240197592
115007933a276a
121b0976904160
13a48b4514670
144d1ad042b8c
1527242520b7c
hex14c89bfe7d8

1428240197592 has 320 divisors, whose sum is σ = 4398850320480. Its totient is φ = 430297878528.

The previous prime is 1428240197561. The next prime is 1428240197599. The reversal of 1428240197592 is 2957910428241.

1428240197592 is a `hidden beast` number, since 1 + 4 + 2 + 8 + 2 + 40 + 1 + 9 + 7 + 592 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428240197599) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 78999658 + ... + 79017734.

Almost surely, 21428240197592 is an apocalyptic number.

1428240197592 is a gapful number since it is divisible by the number (12) 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 1428240197592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2199425160240).

1428240197592 is an abundant number, since it is smaller than the sum of its proper divisors (2970610122888).

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

1428240197592 is a wasteful number, since it uses less digits than its factorization.

1428240197592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18304 (or 18291 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 1428240197592 in words is "one trillion, four hundred twenty-eight billion, two hundred forty million, one hundred ninety-seven thousand, five hundred ninety-two".