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30475430 = 2519160397
BaseRepresentation
bin111010001000…
…0010010100110
32010100022102122
41310100102212
530300203210
63005105542
7520015436
oct164202246
963308378
1030475430
1116225707
12a2582b2
1364104cb
1440942c6
152a1eb55
hex1d104a6

30475430 has 16 divisors (see below), whose sum is σ = 57743280. Its totient is φ = 11548512.

The previous prime is 30475399. The next prime is 30475439. The reversal of 30475430 is 3457403.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30475430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30475439) 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, 80009 + ... + 80388.

It is an arithmetic number, because the mean of its divisors is an integer number (3608955).

Almost surely, 230475430 is an apocalyptic number.

30475430 is a deficient number, since it is larger than the sum of its proper divisors (27267850).

30475430 is a wasteful number, since it uses less digits than its factorization.

30475430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160423.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 30475430 is about 5520.4555971405. The cubic root of 30475430 is about 312.3560681177.

The spelling of 30475430 in words is "thirty million, four hundred seventy-five thousand, four hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 160397 320794 801985 1603970 3047543 6095086 15237715 30475430