Search a number
-
+
2930880 = 26354371
BaseRepresentation
bin1011001011100011000000
312111220102010
423023203000
51222242010
6142452520
733624561
oct13134300
95456363
102930880
111722017
12b94140
137b8064
14564168
153cd620
hex2cb8c0

2930880 has 112 divisors (see below), whose sum is σ = 9656064. Its totient is φ = 752640.

The previous prime is 2930869. The next prime is 2930887. The reversal of 2930880 is 880392.

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

It is not an unprimeable number, because it can be changed into a prime (2930887) 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, 41245 + ... + 41315.

22930880 is an apocalyptic number.

2930880 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 2930880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4828032).

2930880 is an abundant number, since it is smaller than the sum of its proper divisors (6725184).

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

2930880 is a wasteful number, since it uses less digits than its factorization.

2930880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2930880 is about 1711.9813083092. The cubic root of 2930880 is about 143.1086920392.

The spelling of 2930880 in words is "two million, nine hundred thirty thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 43 48 60 64 71 80 86 96 120 129 142 160 172 192 213 215 240 258 284 320 344 355 426 430 480 516 568 645 688 710 852 860 960 1032 1065 1136 1290 1376 1420 1704 1720 2064 2130 2272 2580 2752 2840 3053 3408 3440 4128 4260 4544 5160 5680 6106 6816 6880 8256 8520 9159 10320 11360 12212 13632 13760 15265 17040 18318 20640 22720 24424 30530 34080 36636 41280 45795 48848 61060 68160 73272 91590 97696 122120 146544 183180 195392 244240 293088 366360 488480 586176 732720 976960 1465440 2930880