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30136319 = 167181997
BaseRepresentation
bin111001011110…
…1011111111111
32002201002020222
41302331133333
530203330234
62553531555
7514103663
oct162753777
962632228
1030136319
1116013954
12a113bbb
136322055
1440068a3
1529a442e
hex1cbd7ff

30136319 has 8 divisors (see below), whose sum is σ = 30514848. Its totient is φ = 29760480.

The previous prime is 30136313. The next prime is 30136343. The reversal of 30136319 is 91363103.

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 30136319 - 24 = 30136303 is a prime.

It is a super-2 number, since 2×301363192 = 1816395445739522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30136313) 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, 29729 + ... + 30725.

It is an arithmetic number, because the mean of its divisors is an integer number (3814356).

Almost surely, 230136319 is an apocalyptic number.

30136319 is a deficient number, since it is larger than the sum of its proper divisors (378529).

30136319 is a wasteful number, since it uses less digits than its factorization.

30136319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 30136319 is about 5489.6556358300. The cubic root of 30136319 is about 311.1931782317.

The spelling of 30136319 in words is "thirty million, one hundred thirty-six thousand, three hundred nineteen".

Divisors: 1 167 181 997 30227 166499 180457 30136319