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5491352880 = 24365137243
BaseRepresentation
bin1010001110100111…
…10110010100110000
3112011200221122000000
411013103312110300
542221241243010
62304522430000
7253036505106
oct50723662460
915150848000
105491352880
1123687a8772
121093062300
136968a6b40
143a1445c76
152221627c0
hex1474f6530

5491352880 has 280 divisors, whose sum is σ = 20617669968. Its totient is φ = 1351531008.

The previous prime is 5491352863. The next prime is 5491352921. The reversal of 5491352880 is 882531945.

5491352880 is a `hidden beast` number, since 5 + 49 + 1 + 3 + 528 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 754539 + ... + 761781.

Almost surely, 25491352880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5491352880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10308834984).

5491352880 is an abundant number, since it is smaller than the sum of its proper divisors (15126317088).

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

5491352880 is a wasteful number, since it uses less digits than its factorization.

5491352880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7287 (or 7266 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 5491352880 is about 74103.6630673545. The cubic root of 5491352880 is about 1764.2486113574.

The spelling of 5491352880 in words is "five billion, four hundred ninety-one million, three hundred fifty-two thousand, eight hundred eighty".