Search a number
-
+
30080400 = 2435273581
BaseRepresentation
bin111001010111…
…1110110010000
32002121020112220
41302233312100
530200033100
62552421040
7513451650
oct162576620
962536486
1030080400
1115a85939
12a0a7780
13630276c
143dd0360
152992aa0
hex1cafd90

30080400 has 120 divisors (see below), whose sum is σ = 110153664. Its totient is φ = 6873600.

The previous prime is 30080377. The next prime is 30080417. The reversal of 30080400 is 408003.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30080400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6610 + ... + 10190.

Almost surely, 230080400 is an apocalyptic number.

30080400 is a gapful number since it is divisible by the number (30) 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 30080400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55076832).

30080400 is an abundant number, since it is smaller than the sum of its proper divisors (80073264).

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

30080400 is a wasteful number, since it uses less digits than its factorization.

30080400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 30080400 is about 5484.5601464475. The cubic root of 30080400 is about 311.0005824302. Note that the first 3 decimals are identical.

Adding to 30080400 its reverse (408003), we get a palindrome (30488403).

The spelling of 30080400 in words is "thirty million, eighty thousand, four hundred".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 25 28 30 35 40 42 48 50 56 60 70 75 80 84 100 105 112 120 140 150 168 175 200 210 240 280 300 336 350 400 420 525 560 600 700 840 1050 1200 1400 1680 2100 2800 3581 4200 7162 8400 10743 14324 17905 21486 25067 28648 35810 42972 50134 53715 57296 71620 75201 85944 89525 100268 107430 125335 143240 150402 171888 179050 200536 214860 250670 268575 286480 300804 358100 376005 401072 429720 501340 537150 601608 626675 716200 752010 859440 1002680 1074300 1203216 1253350 1432400 1504020 1880025 2005360 2148600 2506700 3008040 3760050 4297200 5013400 6016080 7520100 10026800 15040200 30080400