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99998755 = 597206183
BaseRepresentation
bin1011111010111…
…01110000100011
320222011110111121
411331131300203
5201044430010
613531153111
72322655363
oct575356043
9228143447
1099998755
11514a05aa
12295a5797
131794307c
14d3d09a3
158ba43da
hex5f5dc23

99998755 has 8 divisors (see below), whose sum is σ = 121236192. Its totient is φ = 79173888.

The previous prime is 99998749. The next prime is 99998783. The reversal of 99998755 is 55789999.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-99998755 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 99998693 and 99998702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102607 + ... + 103576.

It is an arithmetic number, because the mean of its divisors is an integer number (15154524).

Almost surely, 299998755 is an apocalyptic number.

99998755 is a deficient number, since it is larger than the sum of its proper divisors (21237437).

99998755 is a wasteful number, since it uses less digits than its factorization.

99998755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206285.

The product of its digits is 9185400, while the sum is 61.

The square root of 99998755 is about 9999.9377498062. The cubic root of 99998755 is about 464.1569570939.

The spelling of 99998755 in words is "ninety-nine million, nine hundred ninety-eight thousand, seven hundred fifty-five".

Divisors: 1 5 97 485 206183 1030915 19999751 99998755