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30796091 = 307100313
BaseRepresentation
bin111010101111…
…0100100111011
32010221121021222
41311132210323
530340433331
63020022255
7522522344
oct165364473
963847258
1030796091
1116424617
12a39198b
1364c3451
1441390cb
152a84b7b
hex1d5e93b

30796091 has 4 divisors (see below), whose sum is σ = 30896712. Its totient is φ = 30695472.

The previous prime is 30796069. The next prime is 30796123. The reversal of 30796091 is 19069703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19069703 = 39234861.

It is a cyclic number.

It is not a de Polignac number, because 30796091 - 218 = 30533947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30796001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49850 + ... + 50463.

It is an arithmetic number, because the mean of its divisors is an integer number (7724178).

Almost surely, 230796091 is an apocalyptic number.

30796091 is a deficient number, since it is larger than the sum of its proper divisors (100621).

30796091 is a wasteful number, since it uses less digits than its factorization.

30796091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100620.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 30796091 is about 5549.4225825756. The cubic root of 30796091 is about 313.4477798567.

The spelling of 30796091 in words is "thirty million, seven hundred ninety-six thousand, ninety-one".

Divisors: 1 307 100313 30796091