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30070544 = 247268487
BaseRepresentation
bin111001010110…
…1011100010000
32002120202000212
41302231130100
530144224134
62552303252
7513411140
oct162553420
962522025
1030070544
1115a79499
12a0a1b28
1362cb12a
143dca920
15298ebce
hex1cad710

30070544 has 20 divisors (see below), whose sum is σ = 66585024. Its totient is φ = 12887328.

The previous prime is 30070489. The next prime is 30070549. The reversal of 30070544 is 44507003.

It is not an unprimeable number, because it can be changed into a prime (30070549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134132 + ... + 134355.

Almost surely, 230070544 is an apocalyptic number.

It is an amenable number.

30070544 is an abundant number, since it is smaller than the sum of its proper divisors (36514480).

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

30070544 is a wasteful number, since it uses less digits than its factorization.

30070544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268502 (or 268496 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 30070544 is about 5483.6615504606. The cubic root of 30070544 is about 310.9666117319.

Adding to 30070544 its reverse (44507003), we get a palindrome (74577547).

The spelling of 30070544 in words is "thirty million, seventy thousand, five hundred forty-four".

Divisors: 1 2 4 7 8 14 16 28 56 112 268487 536974 1073948 1879409 2147896 3758818 4295792 7517636 15035272 30070544