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30151430 = 258093727
BaseRepresentation
bin111001100000…
…1001100000110
32002201211222122
41303001030012
530204321210
62554125542
7514166021
oct163011406
962654878
1030151430
1116024241
12a1208b2
136328baa
14400c1b8
1529a8b55
hex1cc1306

30151430 has 16 divisors (see below), whose sum is σ = 54354240. Its totient is φ = 12042432.

The previous prime is 30151399. The next prime is 30151439. The reversal of 30151430 is 3415103.

It is a junction number, because it is equal to n+sod(n) for n = 30151399 and 30151408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30151439) 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, 6227 + ... + 9953.

It is an arithmetic number, because the mean of its divisors is an integer number (3397140).

Almost surely, 230151430 is an apocalyptic number.

30151430 is a deficient number, since it is larger than the sum of its proper divisors (24202810).

30151430 is a wasteful number, since it uses less digits than its factorization.

30151430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4543.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 30151430 is about 5491.0317791832. The cubic root of 30151430 is about 311.2451825300.

Adding to 30151430 its reverse (3415103), we get a palindrome (33566533).

The spelling of 30151430 in words is "thirty million, one hundred fifty-one thousand, four hundred thirty".

Divisors: 1 2 5 10 809 1618 3727 4045 7454 8090 18635 37270 3015143 6030286 15075715 30151430