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140998230 = 23253197521
BaseRepresentation
bin10000110011101…
…11011001010110
3100211022110012200
420121313121112
5242043420410
621554025330
73331315362
oct1031673126
9324273180
10140998230
117265406a
123b278246
1323299809
1414a242a2
15c5a23c0
hex8677656

140998230 has 96 divisors (see below), whose sum is σ = 383056128. Its totient is φ = 35942400.

The previous prime is 140998189. The next prime is 140998237. The reversal of 140998230 is 32899041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140998237) 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, 270370 + ... + 270890.

It is an arithmetic number, because the mean of its divisors is an integer number (3990168).

Almost surely, 2140998230 is an apocalyptic number.

140998230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 140998230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191528064).

140998230 is an abundant number, since it is smaller than the sum of its proper divisors (242057898).

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

140998230 is a wasteful number, since it uses less digits than its factorization.

140998230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 140998230 is about 11874.2675563590. The cubic root of 140998230 is about 520.4806084236.

The spelling of 140998230 in words is "one hundred forty million, nine hundred ninety-eight thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 31 45 62 90 93 97 155 186 194 279 291 310 465 485 521 558 582 873 930 970 1042 1395 1455 1563 1746 2605 2790 2910 3007 3126 4365 4689 5210 6014 7815 8730 9021 9378 15035 15630 16151 18042 23445 27063 30070 32302 45105 46890 48453 50537 54126 80755 90210 96906 101074 135315 145359 151611 161510 242265 252685 270630 290718 303222 454833 484530 505370 726795 758055 909666 1453590 1516110 1566647 2274165 3133294 4548330 4699941 7833235 9399882 14099823 15666470 23499705 28199646 46999410 70499115 140998230