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2150071280 = 245723166931
BaseRepresentation
bin1000000000100111…
…0111101111110000
312112211201221022122
42000021313233300
513400404240110
6553203253412
7104165206250
oct20011675760
95484657278
102150071280
11a03728415
1250007a268
1328359c836
141657a1960
15c8b58255
hex80277bf0

2150071280 has 80 divisors (see below), whose sum is σ = 5961475584. Its totient is φ = 705112320.

The previous prime is 2150071279. The next prime is 2150071289. The reversal of 2150071280 is 821700512.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150071289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70586 + ... + 96345.

Almost surely, 22150071280 is an apocalyptic number.

2150071280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2150071280 is an abundant number, since it is smaller than the sum of its proper divisors (3811404304).

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

2150071280 is a wasteful number, since it uses less digits than its factorization.

2150071280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166974 (or 166968 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 2150071280 is about 46368.8611031153. The cubic root of 2150071280 is about 1290.6771438420.

Adding to 2150071280 its reverse (821700512), we get a palindrome (2971771792).

The spelling of 2150071280 in words is "two billion, one hundred fifty million, seventy-one thousand, two hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 23 28 35 40 46 56 70 80 92 112 115 140 161 184 230 280 322 368 460 560 644 805 920 1288 1610 1840 2576 3220 6440 12880 166931 333862 667724 834655 1168517 1335448 1669310 2337034 2670896 3338620 3839413 4674068 5842585 6677240 7678826 9348136 11685170 13354480 15357652 18696272 19197065 23370340 26875891 30715304 38394130 46740680 53751782 61430608 76788260 93481360 107503564 134379455 153576520 215007128 268758910 307153040 430014256 537517820 1075035640 2150071280