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1471990968 = 23377217101
BaseRepresentation
bin101011110111100…
…1100110010111000
310210120210220000000
41113233030302320
511003312202333
6402021513000
751322500600
oct12757146270
93716726000
101471990968
1169599a668
12350b72760
131a5c66596
14dd6d1c00
1589365713
hex57bcccb8

1471990968 has 384 divisors, whose sum is σ = 5148878400. Its totient is φ = 391910400.

The previous prime is 1471990967. The next prime is 1471990987. The reversal of 1471990968 is 8690991741.

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 (1471990967) 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, 14574118 + ... + 14574218.

Almost surely, 21471990968 is an apocalyptic number.

1471990968 is a gapful number since it is divisible by the number (18) 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 1471990968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574439200).

1471990968 is an abundant number, since it is smaller than the sum of its proper divisors (3676887432).

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

1471990968 is a wasteful number, since it uses less digits than its factorization.

1471990968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 54.

The square root of 1471990968 is about 38366.5344799345. The cubic root of 1471990968 is about 1137.5444653230.

The spelling of 1471990968 in words is "one billion, four hundred seventy-one million, nine hundred ninety thousand, nine hundred sixty-eight".