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30530454 = 2319267811
BaseRepresentation
bin111010001110…
…1101110010110
32010110002220120
41310131232112
530303433304
63010212410
7520335033
oct164355626
963402816
1030530454
1116262a89
12a284106
13642c576
1440aa38a
152a310d9
hex1d1db96

30530454 has 16 divisors (see below), whose sum is σ = 64274880. Its totient is φ = 9641160.

The previous prime is 30530449. The next prime is 30530483. The reversal of 30530454 is 45403503.

It is a happy number.

It is a super-2 number, since 2×305304542 = 1864217242892232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133792 + ... + 134019.

It is an arithmetic number, because the mean of its divisors is an integer number (4017180).

Almost surely, 230530454 is an apocalyptic number.

30530454 is an abundant number, since it is smaller than the sum of its proper divisors (33744426).

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

30530454 is a wasteful number, since it uses less digits than its factorization.

30530454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267835.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30530454 is about 5525.4369962927. The cubic root of 30530454 is about 312.5439434738.

Adding to 30530454 its reverse (45403503), we get a palindrome (75933957).

The spelling of 30530454 in words is "thirty million, five hundred thirty thousand, four hundred fifty-four".

Divisors: 1 2 3 6 19 38 57 114 267811 535622 803433 1606866 5088409 10176818 15265227 30530454