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30613319 = 113775217
BaseRepresentation
bin111010011000…
…1111101000111
32010121022120122
41310301331013
530314111234
63012052155
7521131442
oct164617507
963538518
1030613319
111630a270
12a30405b
13645b1b9
1440cc659
152a4a92e
hex1d31f47

30613319 has 8 divisors (see below), whose sum is σ = 34299408. Its totient is φ = 27077760.

The previous prime is 30613279. The next prime is 30613321. The reversal of 30613319 is 91331603.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30613319 is a prime.

It is a super-2 number, since 2×306133192 = 1874350600391522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30613819) 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, 37202 + ... + 38015.

It is an arithmetic number, because the mean of its divisors is an integer number (4287426).

Almost surely, 230613319 is an apocalyptic number.

30613319 is a deficient number, since it is larger than the sum of its proper divisors (3686089).

30613319 is a wasteful number, since it uses less digits than its factorization.

30613319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75265.

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

The square root of 30613319 is about 5532.9304170575. The cubic root of 30613319 is about 312.8264543694.

The spelling of 30613319 in words is "thirty million, six hundred thirteen thousand, three hundred nineteen".

Divisors: 1 11 37 407 75217 827387 2783029 30613319