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30202704 = 2432719283
BaseRepresentation
bin111001100110…
…1101101010000
32002211110022200
41303031231100
530212441304
62555203200
7514501350
oct163155520
962743280
1030202704
1116059814
12a146500
13634632c
144022b60
1529b8e39
hex1ccdb50

30202704 has 180 divisors, whose sum is σ = 103180896. Its totient is φ = 8076672.

The previous prime is 30202687. The next prime is 30202709. The reversal of 30202704 is 40720203.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202709) 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 35 ways as a sum of consecutive naturals, for example, 363847 + ... + 363929.

Almost surely, 230202704 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 30202704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51590448).

30202704 is an abundant number, since it is smaller than the sum of its proper divisors (72978192).

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

30202704 is a wasteful number, since it uses less digits than its factorization.

30202704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 114 counting only the distinct ones).

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

The square root of 30202704 is about 5495.6986816964. The cubic root of 30202704 is about 311.4215118980.

Adding to 30202704 its reverse (40720203), we get a palindrome (70922907).

The spelling of 30202704 in words is "thirty million, two hundred two thousand, seven hundred four".