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30292100 = 2252302921
BaseRepresentation
bin111001110001…
…1100010000100
32002222222221122
41303203202010
530223321400
63001133112
7515323106
oct163434204
962888848
1030292100
111610a9a3
12a18a198
136377c27
144047576
1529d5685
hex1ce3884

30292100 has 18 divisors (see below), whose sum is σ = 65734074. Its totient is φ = 12116800.

The previous prime is 30292069. The next prime is 30292103. The reversal of 30292100 is 129203.

It can be written as a sum of positive squares in 3 ways, for example, as 4910656 + 25381444 = 2216^2 + 5038^2 .

It is a super-2 number, since 2×302921002 = 1835222644820000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30292103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 151361 + ... + 151560.

It is an arithmetic number, because the mean of its divisors is an integer number (3651893).

Almost surely, 230292100 is an apocalyptic number.

It is an amenable number.

30292100 is an abundant number, since it is smaller than the sum of its proper divisors (35441974).

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

30292100 is a wasteful number, since it uses less digits than its factorization.

30292100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302935 (or 302928 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30292100 is about 5503.8259420152. The cubic root of 30292100 is about 311.7284647142.

The spelling of 30292100 in words is "thirty million, two hundred ninety-two thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 302921 605842 1211684 1514605 3029210 6058420 7573025 15146050 30292100