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30029219 = 11101151179
BaseRepresentation
bin111001010001…
…1010110100011
32002111122100022
41302203112203
530141413334
62551344055
7513146513
oct162432643
962448308
1030029219
1115a50440
12a08202b
1362b538c
143db9843
15298282e
hex1ca35a3

30029219 has 16 divisors (see below), whose sum is σ = 33488640. Its totient is φ = 26700000.

The previous prime is 30029213. The next prime is 30029269. The reversal of 30029219 is 91292003.

It is a cyclic number.

It is not a de Polignac number, because 30029219 - 24 = 30029203 is a prime.

It is a super-2 number, since 2×300292192 = 1803507987499922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30029213) 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 15 ways as a sum of consecutive naturals, for example, 167672 + ... + 167850.

It is an arithmetic number, because the mean of its divisors is an integer number (2093040).

Almost surely, 230029219 is an apocalyptic number.

30029219 is a deficient number, since it is larger than the sum of its proper divisors (3459421).

30029219 is a wasteful number, since it uses less digits than its factorization.

30029219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 30029219 is about 5479.8922434661. The cubic root of 30029219 is about 310.8240958920.

It can be divided in two parts, 3002 and 9219, that added together give a palindrome (12221).

The spelling of 30029219 in words is "thirty million, twenty-nine thousand, two hundred nineteen".

Divisors: 1 11 101 151 179 1111 1661 1969 15251 18079 27029 167761 198869 297319 2729929 30029219