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30100404 = 22317147551
BaseRepresentation
bin111001011010…
…0101110110100
32002122020222210
41302310232310
530201203104
62553053420
7513564165
oct162645664
962566883
1030100404
1115a99974
12a0b7270
13630b8b9
143dd776c
152998989
hex1cb4bb4

30100404 has 24 divisors (see below), whose sum is σ = 74366208. Its totient is φ = 9443200.

The previous prime is 30100403. The next prime is 30100409. The reversal of 30100404 is 40400103.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30100404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73572 + ... + 73979.

It is an arithmetic number, because the mean of its divisors is an integer number (3098592).

Almost surely, 230100404 is an apocalyptic number.

30100404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

30100404 is an abundant number, since it is smaller than the sum of its proper divisors (44265804).

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

30100404 is a wasteful number, since it uses less digits than its factorization.

30100404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147575 (or 147573 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 30100404 is about 5486.3835082867. The cubic root of 30100404 is about 311.0695074564.

Adding to 30100404 its reverse (40400103), we get a palindrome (70500507).

The spelling of 30100404 in words is "thirty million, one hundred thousand, four hundred four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 147551 295102 442653 590204 885306 1770612 2508367 5016734 7525101 10033468 15050202 30100404