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30056091 = 313770669
BaseRepresentation
bin111001010100…
…1111010011011
32002120000012120
41302221322123
530143243331
62552112323
7513321042
oct162517233
962500176
1030056091
1115a6964a
12a0956a3
1362c4690
143dc5559
15298a796
hex1ca9e9b

30056091 has 8 divisors (see below), whose sum is σ = 43157520. Its totient is φ = 18496032.

The previous prime is 30056087. The next prime is 30056111. The reversal of 30056091 is 19065003.

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

It is not a de Polignac number, because 30056091 - 22 = 30056087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30056291) 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, 385296 + ... + 385373.

It is an arithmetic number, because the mean of its divisors is an integer number (5394690).

Almost surely, 230056091 is an apocalyptic number.

30056091 is a deficient number, since it is larger than the sum of its proper divisors (13101429).

30056091 is a wasteful number, since it uses less digits than its factorization.

30056091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770685.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 30056091 is about 5482.3435682197. The cubic root of 30056091 is about 310.9167831167.

The spelling of 30056091 in words is "thirty million, fifty-six thousand, ninety-one".

Divisors: 1 3 13 39 770669 2312007 10018697 30056091