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30007044 = 2233793517
BaseRepresentation
bin111001001110…
…1111100000100
32002110111221000
41302131330010
530140211134
62551053300
7513025044
oct162357404
962414830
1030007044
1115a35811
12a071230
1362a8262
143db1724
15297ae99
hex1c9df04

30007044 has 48 divisors (see below), whose sum is σ = 78803200. Its totient is φ = 9872928.

The previous prime is 30007013. The next prime is 30007049. The reversal of 30007044 is 44070003.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30007049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6774 + ... + 10290.

Almost surely, 230007044 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 30007044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39401600).

30007044 is an abundant number, since it is smaller than the sum of its proper divisors (48796156).

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

30007044 is a wasteful number, since it uses less digits than its factorization.

30007044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 30007044 is about 5477.8685635930. The cubic root of 30007044 is about 310.7475679653.

Adding to 30007044 its reverse (44070003), we get a palindrome (74077047).

The spelling of 30007044 in words is "thirty million, seven thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 79 108 158 237 316 474 711 948 1422 2133 2844 3517 4266 7034 8532 10551 14068 21102 31653 42204 63306 94959 126612 189918 277843 379836 555686 833529 1111372 1667058 2500587 3334116 5001174 7501761 10002348 15003522 30007044