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1490771423232 = 21235713109151
BaseRepresentation
bin10101101100011000111…
…001101011000000000000
312021111221102102212100000
4111230120321223000000
5143411044441020412
63100503445200000
7212463464006640
oct25543071530000
95244842385300
101490771423232
11525261671043
12200b08400000
13aa76b4b4ab0
1452221b54520
1528ba20bb4dc
hex15b18e6b000

1490771423232 has 1248 divisors, whose sum is σ = 5583321103360. Its totient is φ = 386983526400.

The previous prime is 1490771423231. The next prime is 1490771423243. The reversal of 1490771423232 is 2323241770941.

It is a tau number, because it is divible by the number of its divisors (1248).

It is not an unprimeable number, because it can be changed into a prime (1490771423231) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9872658357 + ... + 9872658507.

Almost surely, 21490771423232 is an apocalyptic number.

1490771423232 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 1490771423232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2791660551680).

1490771423232 is an abundant number, since it is smaller than the sum of its proper divisors (4092549680128).

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

1490771423232 is a wasteful number, since it uses less digits than its factorization.

1490771423232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 1490771423232 in words is "one trillion, four hundred ninety billion, seven hundred seventy-one million, four hundred twenty-three thousand, two hundred thirty-two".