Search a number
-
+
290079680 = 26511233583
BaseRepresentation
bin10001010010100…
…100001111000000
3202012211120111212
4101102210033000
51043230022210
644441225252
710121431232
oct2122441700
9665746455
10290079680
11139819180
1281192228
13481365a7
142a750252
151a6ee805
hex114a43c0

290079680 has 112 divisors (see below), whose sum is σ = 786530304. Its totient is φ = 100869120.

The previous prime is 290079613. The next prime is 290079683. The reversal of 290079680 is 86970092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290079683) 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, 79169 + ... + 82751.

It is an arithmetic number, because the mean of its divisors is an integer number (7022592).

Almost surely, 2290079680 is an apocalyptic number.

290079680 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 290079680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (393265152).

290079680 is an abundant number, since it is smaller than the sum of its proper divisors (496450624).

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

290079680 is a wasteful number, since it uses less digits than its factorization.

290079680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 290079680 is about 17031.7256906046. The cubic root of 290079680 is about 661.9712111320.

The spelling of 290079680 in words is "two hundred ninety million, seventy-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 11 16 20 22 23 32 40 44 46 55 64 80 88 92 110 115 160 176 184 220 230 253 320 352 368 440 460 506 704 736 880 920 1012 1265 1472 1760 1840 2024 2530 3520 3583 3680 4048 5060 7166 7360 8096 10120 14332 16192 17915 20240 28664 35830 39413 40480 57328 71660 78826 80960 82409 114656 143320 157652 164818 197065 229312 286640 315304 329636 394130 412045 573280 630608 659272 788260 824090 906499 1146560 1261216 1318544 1576520 1648180 1812998 2522432 2637088 3153040 3296360 3625996 4532495 5274176 6306080 6592720 7251992 9064990 12612160 13185440 14503984 18129980 26370880 29007968 36259960 58015936 72519920 145039840 290079680