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98161193 = 1310174761
BaseRepresentation
bin1011101100111…
…01001000101001
320211201002211202
411312131020221
5200112124233
613423533545
72301233144
oct566351051
9224632752
1098161193
1150455a59
1228a5a2b5
131744b860
14d07305b
15893ebe8
hex5d9d229

98161193 has 8 divisors (see below), whose sum is σ = 106760136. Its totient is φ = 89712000.

The previous prime is 98161183. The next prime is 98161199. The reversal of 98161193 is 39116189.

It can be written as a sum of positive squares in 4 ways, for example, as 13741849 + 84419344 = 3707^2 + 9188^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 98161193 - 218 = 97899049 is a prime.

It is a super-4 number, since 4×981611934 (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (98161199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36068 + ... + 38693.

It is an arithmetic number, because the mean of its divisors is an integer number (13345017).

Almost surely, 298161193 is an apocalyptic number.

It is an amenable number.

98161193 is a deficient number, since it is larger than the sum of its proper divisors (8598943).

98161193 is a wasteful number, since it uses less digits than its factorization.

98161193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74875.

The product of its digits is 11664, while the sum is 38.

The square root of 98161193 is about 9907.6330674889. The cubic root of 98161193 is about 461.2962696709.

The spelling of 98161193 in words is "ninety-eight million, one hundred sixty-one thousand, one hundred ninety-three".

Divisors: 1 13 101 1313 74761 971893 7550861 98161193