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98406845 = 519681369
BaseRepresentation
bin1011101110110…
…01000110111101
320212011120210222
411313121012331
5200143004340
613433111125
72303305265
oct567310675
9225146728
1098406845
1150603579
1228b584a5
1317506604
14d0d87a5
15898c8b5
hex5dd91bd

98406845 has 4 divisors (see below), whose sum is σ = 118088220. Its totient is φ = 78725472.

The previous prime is 98406823. The next prime is 98406883. The reversal of 98406845 is 54860489.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65836996 + 32569849 = 8114^2 + 5707^2 .

It is a cyclic number.

It is not a de Polignac number, because 98406845 - 224 = 81629629 is a prime.

It is a super-5 number, since 5×984068455 (a number of 41 digits) contains 55555 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 98406796 and 98406805.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9840680 + ... + 9840689.

It is an arithmetic number, because the mean of its divisors is an integer number (29522055).

Almost surely, 298406845 is an apocalyptic number.

It is an amenable number.

98406845 is a deficient number, since it is larger than the sum of its proper divisors (19681375).

98406845 is a wasteful number, since it uses less digits than its factorization.

98406845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19681374.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 98406845 is about 9920.0224294101. The cubic root of 98406845 is about 461.6807527549.

The spelling of 98406845 in words is "ninety-eight million, four hundred six thousand, eight hundred forty-five".

Divisors: 1 5 19681369 98406845