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30354400 = 2552191997
BaseRepresentation
bin111001111001…
…0101111100000
32010010011102001
41303302233200
530232320100
63002333344
7516002536
oct163625740
963104361
1030354400
111615278a
12a1ba254
13639a3ab
144062156
1529e8d6a
hex1cf2be0

30354400 has 72 divisors (see below), whose sum is σ = 78041880. Its totient is φ = 11496960.

The previous prime is 30354377. The next prime is 30354449. The reversal of 30354400 is 445303.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14202 + ... + 16198.

It is an arithmetic number, because the mean of its divisors is an integer number (1083915).

Almost surely, 230354400 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 30354400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39020940).

30354400 is an abundant number, since it is smaller than the sum of its proper divisors (47687480).

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

30354400 is a wasteful number, since it uses less digits than its factorization.

30354400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2023 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 30354400 is about 5509.4827343409. The cubic root of 30354400 is about 311.9420229769.

Adding to 30354400 its reverse (445303), we get a palindrome (30799703).

The spelling of 30354400 in words is "thirty million, three hundred fifty-four thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 32 38 40 50 76 80 95 100 152 160 190 200 304 380 400 475 608 760 800 950 1520 1900 1997 3040 3800 3994 7600 7988 9985 15200 15976 19970 31952 37943 39940 49925 63904 75886 79880 99850 151772 159760 189715 199700 303544 319520 379430 399400 607088 758860 798800 948575 1214176 1517720 1597600 1897150 3035440 3794300 6070880 7588600 15177200 30354400