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98912245 = 519782449
BaseRepresentation
bin1011110010101…
…00011111110101
320220010021002111
411321110133311
5200310142440
613452011021
72310511615
oct571243765
9226107074
1098912245
1150919263
1229160a71
1317652673
14d1caa45
158a3c4ea
hex5e547f5

98912245 has 4 divisors (see below), whose sum is σ = 118694700. Its totient is φ = 79129792.

The previous prime is 98912221. The next prime is 98912249. The reversal of 98912245 is 54221989.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54221989 = 181299569.

It can be written as a sum of positive squares in 2 ways, for example, as 14676561 + 84235684 = 3831^2 + 9178^2 .

It is a cyclic number.

It is not a de Polignac number, because 98912245 - 27 = 98912117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 98912198 and 98912207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98912249) by changing a digit.

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, 9891220 + ... + 9891229.

It is an arithmetic number, because the mean of its divisors is an integer number (29673675).

Almost surely, 298912245 is an apocalyptic number.

It is an amenable number.

98912245 is a deficient number, since it is larger than the sum of its proper divisors (19782455).

98912245 is a wasteful number, since it uses less digits than its factorization.

98912245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19782454.

The product of its digits is 51840, while the sum is 40.

The square root of 98912245 is about 9945.4635387196. The cubic root of 98912245 is about 462.4697735298.

The spelling of 98912245 in words is "ninety-eight million, nine hundred twelve thousand, two hundred forty-five".

Divisors: 1 5 19782449 98912245