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98910149 = 137608473
BaseRepresentation
bin1011110010100…
…11111111000101
320220010011012212
411321103333011
5200310111044
613451553205
72310502532
oct571237705
9226104185
1098910149
1150917728
122915b805
1317651720
14d1c9d89
158a3ba9e
hex5e53fc5

98910149 has 4 divisors (see below), whose sum is σ = 106518636. Its totient is φ = 91301664.

The previous prime is 98910121. The next prime is 98910167. The reversal of 98910149 is 94101989.

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 62125924 + 36784225 = 7882^2 + 6065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-98910149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98910169) 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, 3804224 + ... + 3804249.

It is an arithmetic number, because the mean of its divisors is an integer number (26629659).

Almost surely, 298910149 is an apocalyptic number.

It is an amenable number.

98910149 is a deficient number, since it is larger than the sum of its proper divisors (7608487).

98910149 is a wasteful number, since it uses less digits than its factorization.

98910149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608486.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 98910149 is about 9945.3581634851. The cubic root of 98910149 is about 462.4665068514.

The spelling of 98910149 in words is "ninety-eight million, nine hundred ten thousand, one hundred forty-nine".

Divisors: 1 13 7608473 98910149