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1904992790472 = 233529416712301
BaseRepresentation
bin11011101110001010011…
…010110010011111001000
320202010010020000112200000
4123232022122302133020
5222202411123243342
64015050330443000
7254426332356012
oct33561232623710
96663106015600
101904992790472
116749a2849102
1226924a293460
1310a84225ab25
14682b89751b2
153484727344c
hex1bb8a6b27c8

1904992790472 has 384 divisors, whose sum is σ = 5755033065600. Its totient is φ = 589171968000.

The previous prime is 1904992790419. The next prime is 1904992790551. The reversal of 1904992790472 is 2740972994091.

1904992790472 is a `hidden beast` number, since 1 + 9 + 0 + 4 + 9 + 92 + 79 + 0 + 472 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154858722 + ... + 154871022.

It is an arithmetic number, because the mean of its divisors is an integer number (14987065275).

Almost surely, 21904992790472 is an apocalyptic number.

1904992790472 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 1904992790472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2877516532800).

1904992790472 is an abundant number, since it is smaller than the sum of its proper divisors (3850040275128).

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

1904992790472 is a wasteful number, since it uses less digits than its factorization.

1904992790472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12459 (or 12443 counting only the distinct ones).

The product of its (nonzero) digits is 20575296, while the sum is 63.

The spelling of 1904992790472 in words is "one trillion, nine hundred four billion, nine hundred ninety-two million, seven hundred ninety thousand, four hundred seventy-two".