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197127315 = 32571156891
BaseRepresentation
bin10111011111111…
…10110010010011
3111201221002211200
423233332302103
5400431033230
631321042243
74612361130
oct1357766223
9451832750
10197127315
11a1300740
1256026383
1331abc8a8
141c275587
151248d160
hexbbfec93

197127315 has 48 divisors (see below), whose sum is σ = 426007296. Its totient is φ = 81921600.

The previous prime is 197127283. The next prime is 197127331. The reversal of 197127315 is 513721791.

It is not a de Polignac number, because 197127315 - 25 = 197127283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197127315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24981 + ... + 31910.

It is an arithmetic number, because the mean of its divisors is an integer number (8875152).

Almost surely, 2197127315 is an apocalyptic number.

197127315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

197127315 is an abundant number, since it is smaller than the sum of its proper divisors (228879981).

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

197127315 is a wasteful number, since it uses less digits than its factorization.

197127315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56920 (or 56917 counting only the distinct ones).

The product of its digits is 13230, while the sum is 36.

The square root of 197127315 is about 14040.2035241659. The cubic root of 197127315 is about 581.9901068216.

The spelling of 197127315 in words is "one hundred ninety-seven million, one hundred twenty-seven thousand, three hundred fifteen".

Divisors: 1 3 5 7 9 11 15 21 33 35 45 55 63 77 99 105 165 231 315 385 495 693 1155 3465 56891 170673 284455 398237 512019 625801 853365 1194711 1877403 1991185 2560095 3129005 3584133 4380607 5632209 5973555 9387015 13141821 17920665 21903035 28161045 39425463 65709105 197127315