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30489762 = 235081627
BaseRepresentation
bin111010001001…
…1110010100010
32010101001002110
41310103302202
530301133022
63005300150
7520105302
oct164236242
963331073
1030489762
1116235456
12a264656
136416ba4
144099602
152a2400c
hex1d13ca2

30489762 has 8 divisors (see below), whose sum is σ = 60979536. Its totient is φ = 10163252.

The previous prime is 30489749. The next prime is 30489821. The reversal of 30489762 is 26798403.

It is a sphenic number, since it is the product of 3 distinct primes.

30489762 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 30489762.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2540808 + ... + 2540819.

It is an arithmetic number, because the mean of its divisors is an integer number (7622442).

Almost surely, 230489762 is an apocalyptic number.

30489762 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30489762 is a wasteful number, since it uses less digits than its factorization.

30489762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5081632.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 30489762 is about 5521.7535258285. The cubic root of 30489762 is about 312.4050254317.

The spelling of 30489762 in words is "thirty million, four hundred eighty-nine thousand, seven hundred sixty-two".

Divisors: 1 2 3 6 5081627 10163254 15244881 30489762