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30210404 = 2271078943
BaseRepresentation
bin111001100111…
…1100101100100
32002211211212212
41303033211210
530213213104
62555302552
7514532660
oct163174544
962754785
1030210404
1116064584
12a14aa58
1363499a3
1440258a0
1529bb36e
hex1ccf964

30210404 has 12 divisors (see below), whose sum is σ = 60420864. Its totient is φ = 12947304.

The previous prime is 30210403. The next prime is 30210407. The reversal of 30210404 is 40401203.

30210404 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (30210403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539444 + ... + 539499.

It is an arithmetic number, because the mean of its divisors is an integer number (5035072).

Almost surely, 230210404 is an apocalyptic number.

It is an amenable number.

30210404 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30210404 is a wasteful number, since it uses less digits than its factorization.

30210404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078954 (or 1078952 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30210404 is about 5496.3991849210. The cubic root of 30210404 is about 311.4479746709.

Adding to 30210404 its reverse (40401203), we get a palindrome (70611607).

The spelling of 30210404 in words is "thirty million, two hundred ten thousand, four hundred four".

Divisors: 1 2 4 7 14 28 1078943 2157886 4315772 7552601 15105202 30210404