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30023000 = 235374289
BaseRepresentation
bin111001010000…
…1110101011000
32002111022210222
41302201311120
530141214000
62551255212
7513122420
oct162416530
962438728
1030023000
1115a467a7
12a07a508
1362b25b7
143db7480
152980a85
hex1ca1d58

30023000 has 64 divisors (see below), whose sum is σ = 80308800. Its totient is φ = 10291200.

The previous prime is 30022999. The next prime is 30023017. The reversal of 30023000 is 32003.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4856 + ... + 9144.

It is an arithmetic number, because the mean of its divisors is an integer number (1254825).

Almost surely, 230023000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40154400).

30023000 is an abundant number, since it is smaller than the sum of its proper divisors (50285800).

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

30023000 is a wasteful number, since it uses less digits than its factorization.

30023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4317 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 8.

The square root of 30023000 is about 5479.3247759190. The cubic root of 30023000 is about 310.8026373640.

Adding to 30023000 its reverse (32003), we get a palindrome (30055003).

The spelling of 30023000 in words is "thirty million, twenty-three thousand".

Divisors: 1 2 4 5 7 8 10 14 20 25 28 35 40 50 56 70 100 125 140 175 200 250 280 350 500 700 875 1000 1400 1750 3500 4289 7000 8578 17156 21445 30023 34312 42890 60046 85780 107225 120092 150115 171560 214450 240184 300230 428900 536125 600460 750575 857800 1072250 1200920 1501150 2144500 3002300 3752875 4289000 6004600 7505750 15011500 30023000