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538212301920 = 253751538101
BaseRepresentation
bin1111101010011111111…
…00111111110001100000
31220110012221101210000000
413311033330333301200
532304224322130140
61051130141300000
753612255040366
oct7651774776140
91813187353000
10538212301920
111982888a4507
1288386264600
133b9a3a29807
141c09a1db636
15e0006e1a30
hex7d4ff3fc60

538212301920 has 192 divisors, whose sum is σ = 1907000383680. Its totient is φ = 143523187200.

The previous prime is 538212301859. The next prime is 538212301967. The reversal of 538212301920 is 29103212835.

538212301920 is a `hidden beast` number, since 53 + 8 + 212 + 301 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419131 + ... + 1118970.

It is an arithmetic number, because the mean of its divisors is an integer number (9932293665).

Almost surely, 2538212301920 is an apocalyptic number.

It is an amenable number.

538212301920 is an abundant number, since it is smaller than the sum of its proper divisors (1368788081760).

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

538212301920 is an equidigital number, since it uses as much as digits as its factorization.

538212301920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538137 (or 1538111 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 538212301920 in words is "five hundred thirty-eight billion, two hundred twelve million, three hundred one thousand, nine hundred twenty".