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30292205 = 547128903
BaseRepresentation
bin111001110001…
…1100011101101
32010000000002112
41303203203231
530223322310
63001133405
7515323316
oct163434355
963000075
1030292205
111610aa89
12a18a265
136377ca8
14404760d
1529d5705
hex1ce38ed

30292205 has 8 divisors (see below), whose sum is σ = 37124352. Its totient is φ = 23717968.

The previous prime is 30292201. The next prime is 30292217. The reversal of 30292205 is 50229203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30292205 - 22 = 30292201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30292201) 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, 64217 + ... + 64686.

It is an arithmetic number, because the mean of its divisors is an integer number (4640544).

Almost surely, 230292205 is an apocalyptic number.

It is an amenable number.

30292205 is a deficient number, since it is larger than the sum of its proper divisors (6832147).

30292205 is a wasteful number, since it uses less digits than its factorization.

30292205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128955.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 30292205 is about 5503.8354808261. The cubic root of 30292205 is about 311.7288248901.

The spelling of 30292205 in words is "thirty million, two hundred ninety-two thousand, two hundred five".

Divisors: 1 5 47 235 128903 644515 6058441 30292205