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30486764 = 22711312103
BaseRepresentation
bin111010001001…
…1000011101100
32010100212222102
41310103003230
530301034024
63005234232
7520063460
oct164230354
963325872
1030486764
1116233180
12a262978
136415709
1440984a0
152a231ae
hex1d130ec

30486764 has 72 divisors (see below), whose sum is σ = 69398784. Its totient is φ = 11383200.

The previous prime is 30486751. The next prime is 30486767. The reversal of 30486764 is 46768403.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30486767) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 295937 + ... + 296039.

It is an arithmetic number, because the mean of its divisors is an integer number (963872).

Almost surely, 230486764 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 30486764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34699392).

30486764 is an abundant number, since it is smaller than the sum of its proper divisors (38912020).

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

30486764 is a wasteful number, since it uses less digits than its factorization.

30486764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 30486764 is about 5521.4820474217. The cubic root of 30486764 is about 312.3947856998.

The spelling of 30486764 in words is "thirty million, four hundred eighty-six thousand, seven hundred sixty-four".

Divisors: 1 2 4 7 11 14 22 28 31 44 62 77 103 124 154 206 217 308 341 412 434 682 721 868 961 1133 1364 1442 1922 2266 2387 2884 3193 3844 4532 4774 6386 6727 7931 9548 10571 12772 13454 15862 21142 22351 26908 31724 35123 42284 44702 70246 73997 89404 98983 140492 147994 197966 245861 295988 395932 491722 692881 983444 1088813 1385762 2177626 2771524 4355252 7621691 15243382 30486764