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30430860 = 22352917489
BaseRepresentation
bin111010000010…
…1011010001100
32010021001021220
41310011122030
530242241420
63004123340
7516441465
oct164053214
963231256
1030430860
11161a5179
12a236550
1363c6135
144081d6c
152a11840
hex1d0568c

30430860 has 48 divisors (see below), whose sum is σ = 88149600. Its totient is φ = 7834624.

The previous prime is 30430849. The next prime is 30430903. The reversal of 30430860 is 6803403.

It is a self number, because there is not a number n which added to its sum of digits gives 30430860.

It is an unprimeable number.

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, 7005 + ... + 10484.

It is an arithmetic number, because the mean of its divisors is an integer number (1836450).

Almost surely, 230430860 is an apocalyptic number.

30430860 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30430860 is an abundant number, since it is smaller than the sum of its proper divisors (57718740).

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

30430860 is a wasteful number, since it uses less digits than its factorization.

30430860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17530 (or 17528 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 30430860 is about 5516.4173156135. The cubic root of 30430860 is about 312.2037213227.

The spelling of 30430860 in words is "thirty million, four hundred thirty thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 348 435 580 870 1740 17489 34978 52467 69956 87445 104934 174890 209868 262335 349780 507181 524670 1014362 1049340 1521543 2028724 2535905 3043086 5071810 6086172 7607715 10143620 15215430 30430860