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30145350 = 2352732753
BaseRepresentation
bin111001011111…
…1101101000110
32002201112122110
41302333231012
530204122400
62554041450
7514142214
oct162775506
962645573
1030145350
111601a714
12a119286
1363261b1
144009cb4
1529a6e50
hex1cbfb46

30145350 has 48 divisors (see below), whose sum is σ = 75812112. Its totient is φ = 7925760.

The previous prime is 30145333. The next prime is 30145439. The reversal of 30145350 is 5354103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9574 + ... + 12326.

It is an arithmetic number, because the mean of its divisors is an integer number (1579419).

Almost surely, 230145350 is an apocalyptic number.

30145350 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30145350, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37906056).

30145350 is an abundant number, since it is smaller than the sum of its proper divisors (45666762).

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

30145350 is a wasteful number, since it uses less digits than its factorization.

30145350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841 (or 2836 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 30145350 is about 5490.4781212568. The cubic root of 30145350 is about 311.2242603834.

Adding to 30145350 its reverse (5354103), we get a palindrome (35499453).

The spelling of 30145350 in words is "thirty million, one hundred forty-five thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 73 75 146 150 219 365 438 730 1095 1825 2190 2753 3650 5475 5506 8259 10950 13765 16518 27530 41295 68825 82590 137650 200969 206475 401938 412950 602907 1004845 1205814 2009690 3014535 5024225 6029070 10048450 15072675 30145350