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30454000 = 245315227
BaseRepresentation
bin111010000101…
…1000011110000
32010022020000221
41310023003300
530244012000
63004422424
7516566113
oct164130360
963266027
1030454000
11162105a5
12a247a14
136403825
14408a57a
152a1861a
hex1d0b0f0

30454000 has 40 divisors (see below), whose sum is σ = 73642608. Its totient is φ = 12180800.

The previous prime is 30453991. The next prime is 30454007. The reversal of 30454000 is 45403.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×304540003 (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30454007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5614 + ... + 9613.

Almost surely, 230454000 is an apocalyptic number.

It is an amenable number.

30454000 is an abundant number, since it is smaller than the sum of its proper divisors (43188608).

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

30454000 is a wasteful number, since it uses less digits than its factorization.

30454000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15250 (or 15234 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 30454000 is about 5518.5142928147. The cubic root of 30454000 is about 312.2828357887.

Adding to 30454000 its reverse (45403), we get a palindrome (30499403).

The spelling of 30454000 in words is "thirty million, four hundred fifty-four thousand".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 1000 2000 15227 30454 60908 76135 121816 152270 243632 304540 380675 609080 761350 1218160 1522700 1903375 3045400 3806750 6090800 7613500 15227000 30454000