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30404000 = 255311691
BaseRepresentation
bin111001111111…
…0110110100000
32010012200110002
41303332312200
530240412000
63003355132
7516300254
oct163766640
963180402
1030404000
1116186a80
12a222aa8
1363b6b43
144076264
152a088d5
hex1cfeda0

30404000 has 96 divisors (see below), whose sum is σ = 81611712. Its totient is φ = 11040000.

The previous prime is 30403991. The next prime is 30404021. The reversal of 30404000 is 40403.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43655 + ... + 44345.

It is an arithmetic number, because the mean of its divisors is an integer number (850122).

Almost surely, 230404000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30404000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40805856).

30404000 is an abundant number, since it is smaller than the sum of its proper divisors (51207712).

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

30404000 is a wasteful number, since it uses less digits than its factorization.

30404000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 30404000 is about 5513.9822270298. The cubic root of 30404000 is about 312.1118380566. Note that the first 3 decimals are identical.

Adding to 30404000 its reverse (40403), we get a palindrome (30444403).

The spelling of 30404000 in words is "thirty million, four hundred four thousand".

Divisors: 1 2 4 5 8 10 11 16 20 22 25 32 40 44 50 55 80 88 100 110 125 160 176 200 220 250 275 352 400 440 500 550 691 800 880 1000 1100 1375 1382 1760 2000 2200 2750 2764 3455 4000 4400 5500 5528 6910 7601 8800 11000 11056 13820 15202 17275 22000 22112 27640 30404 34550 38005 44000 55280 60808 69100 76010 86375 110560 121616 138200 152020 172750 190025 243232 276400 304040 345500 380050 552800 608080 691000 760100 950125 1216160 1382000 1520200 1900250 2764000 3040400 3800500 6080800 7601000 15202000 30404000