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1490709493812 = 22371127913011427
BaseRepresentation
bin10101101100010101001…
…101011011100000110100
312021111210002220112010210
4111230111031123200310
5143410433112300222
63100453353545420
7212462112425460
oct25542515334064
95244702815123
101490709493812
1152522a712600
12200aab715270
13aa75b710876
14522178334a0
1528b9b936d0c
hex15b1535b834

1490709493812 has 288 divisors, whose sum is σ = 4431276380160. Its totient is φ = 381734496000.

The previous prime is 1490709493751. The next prime is 1490709493849. The reversal of 1490709493812 is 2183949070941.

It is a congruent number.

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, 1044645043 + ... + 1044646469.

It is an arithmetic number, because the mean of its divisors is an integer number (15386376320).

Almost surely, 21490709493812 is an apocalyptic number.

1490709493812 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 1490709493812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215638190080).

1490709493812 is an abundant number, since it is smaller than the sum of its proper divisors (2940566886348).

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

1490709493812 is a wasteful number, since it uses less digits than its factorization.

1490709493812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2830 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 57.

The spelling of 1490709493812 in words is "one trillion, four hundred ninety billion, seven hundred nine million, four hundred ninety-three thousand, eight hundred twelve".