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30250612 = 22723107439
BaseRepresentation
bin111001101100…
…1011001110100
32002220220001001
41303121121310
530221004422
63000213044
7515061130
oct163313164
962826031
1030250612
1116091807
12a16a184
136362092
1440363c0
1529c8227
hex1cd9674

30250612 has 48 divisors (see below), whose sum is σ = 63866880. Its totient is φ = 12256992.

The previous prime is 30250573. The next prime is 30250621. The reversal of 30250612 is 21605203.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30250612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68689 + ... + 69127.

It is an arithmetic number, because the mean of its divisors is an integer number (1330560).

Almost surely, 230250612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30250612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31933440).

30250612 is an abundant number, since it is smaller than the sum of its proper divisors (33616268).

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

30250612 is a wasteful number, since it uses less digits than its factorization.

30250612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 30250612 is about 5500.0556360822. The cubic root of 30250612 is about 311.5860854649.

Adding to 30250612 its reverse (21605203), we get a palindrome (51855815).

The spelling of 30250612 in words is "thirty million, two hundred fifty thousand, six hundred twelve".

Divisors: 1 2 4 7 14 23 28 46 92 107 161 214 322 428 439 644 749 878 1498 1756 2461 2996 3073 4922 6146 9844 10097 12292 17227 20194 34454 40388 46973 68908 70679 93946 141358 187892 282716 328811 657622 1080379 1315244 2160758 4321516 7562653 15125306 30250612