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9998143700 = 22521723376911
BaseRepresentation
bin10010100111110111…
…11001000011010100
3221210210021022202112
421103323321003110
5130434011044300
64332034530152
7502522550666
oct112373710324
927723238675
109998143700
114270767386
121b30436958
13c344ba57c
146abbdc536
153d7b42e35
hex253ef90d4

9998143700 has 144 divisors (see below), whose sum is σ = 24622424064. Its totient is φ = 3502540800.

The previous prime is 9998143697. The next prime is 9998143709. The reversal of 9998143700 is 73418999.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9998143709) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1443245 + ... + 1450155.

It is an arithmetic number, because the mean of its divisors is an integer number (170989056).

Almost surely, 29998143700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9998143700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12311212032).

9998143700 is an abundant number, since it is smaller than the sum of its proper divisors (14624280364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9998143700 is a wasteful number, since it uses less digits than its factorization.

With its successor (9998143701) it forms an eRAP, since the sums of their prime factors are consecutive (7002 and 7003).

9998143700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7002 (or 6995 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 9998143700 is about 99990.7180692288. The cubic root of 9998143700 is about 2154.3013725451.

The spelling of 9998143700 in words is "nine billion, nine hundred ninety-eight million, one hundred forty-three thousand, seven hundred".

Divisors: 1 2 4 5 10 17 20 23 25 34 37 46 50 68 74 85 92 100 115 148 170 185 230 340 370 391 425 460 575 629 740 782 850 851 925 1150 1258 1564 1700 1702 1850 1955 2300 2516 3145 3404 3700 3910 4255 6290 6911 7820 8510 9775 12580 13822 14467 15725 17020 19550 21275 27644 28934 31450 34555 39100 42550 57868 62900 69110 72335 85100 117487 138220 144670 158953 172775 234974 255707 289340 317906 345550 361675 469948 511414 587435 635812 691100 723350 794765 1022828 1174870 1278535 1446700 1589530 2349740 2557070 2702201 2937175 3179060 3973825 4347019 5114140 5404402 5874350 5881261 6392675 7947650 8694038 10808804 11748700 11762522 12785350 13511005 15895300 17388076 21735095 23525044 25570700 27022010 29406305 43470190 54044020 58812610 67555025 86940380 99981437 108675475 117625220 135110050 147031525 199962874 217350950 270220100 294063050 399925748 434701900 499907185 588126100 999814370 1999628740 2499535925 4999071850 9998143700