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30316400 = 2452193989
BaseRepresentation
bin111001110100…
…1011101110000
32010001020021122
41303221131300
530230111100
63001441412
7515454002
oct163513560
963036248
1030316400
1116127184
12a1a0268
136385cca
144052372
1529dc985
hex1ce9770

30316400 has 60 divisors (see below), whose sum is σ = 76687800. Its totient is φ = 11485440.

The previous prime is 30316399. The next prime is 30316409. The reversal of 30316400 is 461303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30316409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5606 + ... + 9594.

It is an arithmetic number, because the mean of its divisors is an integer number (1278130).

Almost surely, 230316400 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 30316400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38343900).

30316400 is an abundant number, since it is smaller than the sum of its proper divisors (46371400).

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

30316400 is a wasteful number, since it uses less digits than its factorization.

30316400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4026 (or 4015 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 30316400 is about 5506.0330547500. The cubic root of 30316400 is about 311.8117975201.

Adding to 30316400 its reverse (461303), we get a palindrome (30777703).

The spelling of 30316400 in words is "thirty million, three hundred sixteen thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 19 20 25 38 40 50 76 80 95 100 152 190 200 304 380 400 475 760 950 1520 1900 3800 3989 7600 7978 15956 19945 31912 39890 63824 75791 79780 99725 151582 159560 199450 303164 319120 378955 398900 606328 757910 797800 1212656 1515820 1595600 1894775 3031640 3789550 6063280 7579100 15158200 30316400