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30528026 = 241372293
BaseRepresentation
bin111010001110…
…1001000011010
32010102222120122
41310131020122
530303344101
63010153242
7520324664
oct164351032
963388518
1030528026
1116261181
12a282822
13642b429
1440a9534
152a3051b
hex1d1d21a

30528026 has 8 divisors (see below), whose sum is σ = 46909044. Its totient is φ = 14891680.

The previous prime is 30528011. The next prime is 30528119. The reversal of 30528026 is 62082503.

It can be written as a sum of positive squares in 2 ways, for example, as 30525625 + 2401 = 5525^2 + 49^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 30527986 and 30528004.

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, 186065 + ... + 186228.

Almost surely, 230528026 is an apocalyptic number.

30528026 is a deficient number, since it is larger than the sum of its proper divisors (16381018).

30528026 is a wasteful number, since it uses less digits than its factorization.

30528026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372336.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 30528026 is about 5525.2172807954. The cubic root of 30528026 is about 312.5356580111.

The spelling of 30528026 in words is "thirty million, five hundred twenty-eight thousand, twenty-six".

Divisors: 1 2 41 82 372293 744586 15264013 30528026