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303040404 = 223219994211
BaseRepresentation
bin10010000100000…
…000011110010100
3210010020001021200
4102010000132110
51110034243104
650023112500
710336541502
oct2204003624
9703201250
10303040404
11146070817
12855a2730
134aa23964
142c365672
151b90eb39
hex12100794

303040404 has 36 divisors (see below), whose sum is σ = 766584000. Its totient is φ = 100938960.

The previous prime is 303040399. The next prime is 303040411. The reversal of 303040404 is 404040303.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69859 + ... + 74069.

It is an arithmetic number, because the mean of its divisors is an integer number (21294000).

Almost surely, 2303040404 is an apocalyptic number.

It is an amenable number.

303040404 is an abundant number, since it is smaller than the sum of its proper divisors (463543596).

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

303040404 is a wasteful number, since it uses less digits than its factorization.

303040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220 (or 6215 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 303040404 is about 17408.0557214182. The cubic root of 303040404 is about 671.6868492055.

Adding to 303040404 its reverse (404040303), we get a palindrome (707080707).

It can be divided in two parts, 3030 and 40404, that added together give a palindrome (43434).

The spelling of 303040404 in words is "three hundred three million, forty thousand, four hundred four".

Divisors: 1 2 3 4 6 9 12 18 36 1999 3998 4211 5997 7996 8422 11994 12633 16844 17991 23988 25266 35982 37899 50532 71964 75798 151596 8417789 16835578 25253367 33671156 50506734 75760101 101013468 151520202 303040404