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30275430 = 2351676043
BaseRepresentation
bin111001101111…
…1011101100110
32002222011002020
41303133131212
530222303210
63000524010
7515223363
oct163373546
962864066
1030275430
11160a9419
12a180606
136370473
14404146a
1529d0770
hex1cdf766

30275430 has 32 divisors (see below), whose sum is σ = 73108224. Its totient is φ = 8023776.

The previous prime is 30275423. The next prime is 30275447. The reversal of 30275430 is 3457203.

It is a self number, because there is not a number n which added to its sum of digits gives 30275430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1989 + ... + 8031.

It is an arithmetic number, because the mean of its divisors is an integer number (2284632).

Almost surely, 230275430 is an apocalyptic number.

30275430 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30275430 is an abundant number, since it is smaller than the sum of its proper divisors (42832794).

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

30275430 is a wasteful number, since it uses less digits than its factorization.

30275430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30275430 is about 5502.3113325220. The cubic root of 30275430 is about 311.6712719475.

The spelling of 30275430 in words is "thirty million, two hundred seventy-five thousand, four hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 167 334 501 835 1002 1670 2505 5010 6043 12086 18129 30215 36258 60430 90645 181290 1009181 2018362 3027543 5045905 6055086 10091810 15137715 30275430