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274351980 = 22357313331
BaseRepresentation
bin10000010110100…
…100011101101100
3201010020112011110
4100112210131230
51030213230410
643120152020
76540645000
oct2026443554
9633215143
10274351980
11130956781
1277a68610
1344aba966
1428618700
1519144720
hex105a476c

274351980 has 96 divisors (see below), whose sum is σ = 895910400. Its totient is φ = 62704320.

The previous prime is 274351969. The next prime is 274352053. The reversal of 274351980 is 89153472.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13915 + ... + 27245.

It is an arithmetic number, because the mean of its divisors is an integer number (9332400).

Almost surely, 2274351980 is an apocalyptic number.

274351980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274351980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (447955200).

274351980 is an abundant number, since it is smaller than the sum of its proper divisors (621558420).

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

274351980 is a wasteful number, since it uses less digits than its factorization.

274351980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13364 (or 13348 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 274351980 is about 16563.5738897135. The cubic root of 274351980 is about 649.7845281856.

The spelling of 274351980 in words is "two hundred seventy-four million, three hundred fifty-one thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 49 60 70 84 98 105 140 147 196 210 245 294 343 420 490 588 686 735 980 1029 1372 1470 1715 2058 2940 3430 4116 5145 6860 10290 13331 20580 26662 39993 53324 66655 79986 93317 133310 159972 186634 199965 266620 279951 373268 399930 466585 559902 653219 799860 933170 1119804 1306438 1399755 1866340 1959657 2612876 2799510 3266095 3919314 4572533 5599020 6532190 7838628 9145066 9798285 13064380 13717599 18290132 19596570 22862665 27435198 39193140 45725330 54870396 68587995 91450660 137175990 274351980