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271540380 = 22357957287
BaseRepresentation
bin10000001011110…
…110000010011100
3200220221200101010
4100023312002130
51024003243010
642540015220
76505024626
oct2013660234
9626850333
10271540380
1112a306341
1276b31510
1344344ca7
14280c5c16
1518c8b620
hex102f609c

271540380 has 48 divisors (see below), whose sum is σ = 769950720. Its totient is φ = 71492928.

The previous prime is 271540327. The next prime is 271540391. The reversal of 271540380 is 83045172.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23904 + ... + 33383.

It is an arithmetic number, because the mean of its divisors is an integer number (16040640).

Almost surely, 2271540380 is an apocalyptic number.

271540380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271540380 is an abundant number, since it is smaller than the sum of its proper divisors (498410340).

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

271540380 is a wasteful number, since it uses less digits than its factorization.

271540380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57378 (or 57376 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 271540380 is about 16478.4823330306. The cubic root of 271540380 is about 647.5572058798.

The spelling of 271540380 in words is "two hundred seventy-one million, five hundred forty thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 316 395 474 790 948 1185 1580 2370 4740 57287 114574 171861 229148 286435 343722 572870 687444 859305 1145740 1718610 3437220 4525673 9051346 13577019 18102692 22628365 27154038 45256730 54308076 67885095 90513460 135770190 271540380