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98009801 = 427322937
BaseRepresentation
bin1011101011110…
…00001011001001
320211102102011122
411311320023021
5200042303201
613420405025
72300032601
oct565701311
9224372148
1098009801
115036223a
12289a6775
13173c7986
14d033c01
15890ee1b
hex5d782c9

98009801 has 4 divisors (see below), whose sum is σ = 98037012. Its totient is φ = 97982592.

The previous prime is 98009767. The next prime is 98009861. The reversal of 98009801 is 10890089.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10890089 = 71555727.

It can be written as a sum of positive squares in 2 ways, for example, as 25351225 + 72658576 = 5035^2 + 8524^2 .

It is a cyclic number.

It is not a de Polignac number, because 98009801 - 222 = 93815497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98009861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7196 + ... + 15741.

It is an arithmetic number, because the mean of its divisors is an integer number (24509253).

Almost surely, 298009801 is an apocalyptic number.

It is an amenable number.

98009801 is a deficient number, since it is larger than the sum of its proper divisors (27211).

98009801 is a wasteful number, since it uses less digits than its factorization.

98009801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27210.

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 98009801 is about 9899.9899494898. The cubic root of 98009801 is about 461.0589983826.

The spelling of 98009801 in words is "ninety-eight million, nine thousand, eight hundred one".

Divisors: 1 4273 22937 98009801