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30027470 = 2511299413
BaseRepresentation
bin111001010001…
…0111011001110
32002111112221112
41302202323032
530141334340
62551332022
7513141434
oct162427316
962445845
1030027470
1115a4a0a0
12a081012
1362b4645
143db8d54
152982065
hex1ca2ece

30027470 has 32 divisors (see below), whose sum is σ = 61002720. Its totient is φ = 10541440.

The previous prime is 30027469. The next prime is 30027479. The reversal of 30027470 is 7472003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30027479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1517 + ... + 7896.

It is an arithmetic number, because the mean of its divisors is an integer number (1906335).

Almost surely, 230027470 is an apocalyptic number.

30027470 is an abundant number, since it is smaller than the sum of its proper divisors (30975250).

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

30027470 is a wasteful number, since it uses less digits than its factorization.

30027470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9460.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 30027470 is about 5479.7326577124. The cubic root of 30027470 is about 310.8180613040.

Adding to 30027470 its reverse (7472003), we get a palindrome (37499473).

The spelling of 30027470 in words is "thirty million, twenty-seven thousand, four hundred seventy".

Divisors: 1 2 5 10 11 22 29 55 58 110 145 290 319 638 1595 3190 9413 18826 47065 94130 103543 207086 272977 517715 545954 1035430 1364885 2729770 3002747 6005494 15013735 30027470