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801812088 = 233372117197
BaseRepresentation
bin101111110010101…
…010111001111000
32001212202021102000
4233302222321320
53120230441323
6211321341000
725604201400
oct5762527170
92055667360
10801812088
11381669320
121a4637760
13ca16892c
14786bb800
154a5d3e43
hex2fcaae78

801812088 has 384 divisors, whose sum is σ = 2895782400. Its totient is φ = 203212800.

The previous prime is 801812069. The next prime is 801812101. The reversal of 801812088 is 880218108.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 8266056 + ... + 8266152.

It is an arithmetic number, because the mean of its divisors is an integer number (7541100).

Almost surely, 2801812088 is an apocalyptic number.

801812088 is a gapful number since it is divisible by the number (88) 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 801812088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447891200).

801812088 is an abundant number, since it is smaller than the sum of its proper divisors (2093970312).

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

801812088 is a wasteful number, since it uses less digits than its factorization.

801812088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 36.

The square root of 801812088 is about 28316.2866209537. The cubic root of 801812088 is about 929.0181521240.

The spelling of 801812088 in words is "eight hundred one million, eight hundred twelve thousand, eighty-eight".