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30764217 = 3114332153
BaseRepresentation
bin111010101011…
…0110010111001
32010212222120110
41311112302321
530333423332
63015214533
7522330411
oct165266271
963788513
1030764217
1116402680
12a377449
1364b1aa3
14412b641
152a7a4cc
hex1d56cb9

30764217 has 16 divisors (see below), whose sum is σ = 44872128. Its totient is φ = 18593280.

The previous prime is 30764197. The next prime is 30764233. The reversal of 30764217 is 71246703.

It is not a de Polignac number, because 30764217 - 211 = 30762169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30764257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13213 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (2804508).

Almost surely, 230764217 is an apocalyptic number.

It is an amenable number.

30764217 is a deficient number, since it is larger than the sum of its proper divisors (14107911).

30764217 is a wasteful number, since it uses less digits than its factorization.

30764217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 30764217 is about 5546.5500087892. The cubic root of 30764217 is about 313.3396028875.

The spelling of 30764217 in words is "thirty million, seven hundred sixty-four thousand, two hundred seventeen".

Divisors: 1 3 11 33 433 1299 2153 4763 6459 14289 23683 71049 932249 2796747 10254739 30764217