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30244542 = 23191272089
BaseRepresentation
bin111001101011…
…1111010111110
32002220120201020
41303113322332
530220311132
63000125010
7515034336
oct163277276
962816636
1030244542
1116088199
12a166766
13635c3a3
1440340c6
1529c652c
hex1cd7ebe

30244542 has 32 divisors (see below), whose sum is σ = 64204800. Its totient is φ = 9471168.

The previous prime is 30244541. The next prime is 30244553. The reversal of 30244542 is 24544203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30244541) 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, 13434 + ... + 15522.

It is an arithmetic number, because the mean of its divisors is an integer number (2006400).

Almost surely, 230244542 is an apocalyptic number.

30244542 is an abundant number, since it is smaller than the sum of its proper divisors (33960258).

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

30244542 is a wasteful number, since it uses less digits than its factorization.

30244542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 30244542 is about 5499.5037957983. The cubic root of 30244542 is about 311.5652434176.

Adding to 30244542 its reverse (24544203), we get a palindrome (54788745).

It can be divided in two parts, 302 and 44542, that added together give a palindrome (44844).

The spelling of 30244542 in words is "thirty million, two hundred forty-four thousand, five hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 127 254 381 762 2089 2413 4178 4826 6267 7239 12534 14478 39691 79382 119073 238146 265303 530606 795909 1591818 5040757 10081514 15122271 30244542