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30844002 = 237734381
BaseRepresentation
bin111010110101…
…0010001100010
32011001001000110
41311222101202
530344002002
63021032150
7523112130
oct165522142
964031013
1030844002
1116457612
12a3b5656
13650c1b7
14414c750
152a93e6c
hex1d6a462

30844002 has 16 divisors (see below), whose sum is σ = 70500672. Its totient is φ = 8812560.

The previous prime is 30843991. The next prime is 30844007. The reversal of 30844002 is 20044803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 30844002.

It is not an unprimeable number, because it can be changed into a prime (30844007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 367149 + ... + 367232.

It is an arithmetic number, because the mean of its divisors is an integer number (4406292).

Almost surely, 230844002 is an apocalyptic number.

30844002 is an abundant number, since it is smaller than the sum of its proper divisors (39656670).

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

30844002 is a wasteful number, since it uses less digits than its factorization.

30844002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 734393.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 30844002 is about 5553.7376603509. The cubic root of 30844002 is about 313.6102443659.

Adding to 30844002 its reverse (20044803), we get a palindrome (50888805).

The spelling of 30844002 in words is "thirty million, eight hundred forty-four thousand, two".

Divisors: 1 2 3 6 7 14 21 42 734381 1468762 2203143 4406286 5140667 10281334 15422001 30844002