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30406760 = 235760169
BaseRepresentation
bin111001111111…
…1100001101000
32010012211020022
41303333201220
530241004020
63003420012
7516311306
oct163774150
963184208
1030406760
111618905a
12a224608
1363b8187
144077276
152a09625
hex1cff868

30406760 has 16 divisors (see below), whose sum is σ = 68415300. Its totient is φ = 12162688.

The previous prime is 30406751. The next prime is 30406769. The reversal of 30406760 is 6760403.

It is an interprime number because it is at equal distance from previous prime (30406751) and next prime (30406769).

It can be written as a sum of positive squares in 2 ways, for example, as 24462916 + 5943844 = 4946^2 + 2438^2 .

It is not an unprimeable number, because it can be changed into a prime (30406769) 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, 380045 + ... + 380124.

Almost surely, 230406760 is an apocalyptic number.

It is an amenable number.

30406760 is an abundant number, since it is smaller than the sum of its proper divisors (38008540).

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

30406760 is a wasteful number, since it uses less digits than its factorization.

30406760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760180 (or 760176 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 30406760 is about 5514.2324941917. The cubic root of 30406760 is about 312.1212820180.

The spelling of 30406760 in words is "thirty million, four hundred six thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 760169 1520338 3040676 3800845 6081352 7601690 15203380 30406760