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30608916 = 22313375303
BaseRepresentation
bin111010011000…
…0111000010100
32010121002112120
41310300320110
530313441131
63012015540
7521112552
oct164607024
963532476
1030608916
1116306a28
12a3015b0
1364591b0
1440cabd2
152a49496
hex1d30e14

30608916 has 48 divisors (see below), whose sum is σ = 79008384. Its totient is φ = 9161856.

The previous prime is 30608909. The next prime is 30608917. The reversal of 30608916 is 61980603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30608917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3121 + ... + 8423.

It is an arithmetic number, because the mean of its divisors is an integer number (1646008).

Almost surely, 230608916 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 30608916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39504192).

30608916 is an abundant number, since it is smaller than the sum of its proper divisors (48399468).

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

30608916 is a wasteful number, since it uses less digits than its factorization.

30608916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5360 (or 5358 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 30608916 is about 5532.5325123310. The cubic root of 30608916 is about 312.8114560945.

The spelling of 30608916 in words is "thirty million, six hundred eight thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 13 26 37 39 52 74 78 111 148 156 222 444 481 962 1443 1924 2886 5303 5772 10606 15909 21212 31818 63636 68939 137878 196211 206817 275756 392422 413634 588633 784844 827268 1177266 2354532 2550743 5101486 7652229 10202972 15304458 30608916