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30229761 = 319152757
BaseRepresentation
bin111001101010…
…0010100000001
32002212211102210
41303110110001
530214323021
62555532333
7514643262
oct163242401
962784383
1030229761
1116078081
12a15a0a9
136355743
14402c969
1529c1e76
hex1cd4501

30229761 has 8 divisors (see below), whose sum is σ = 40518144. Its totient is φ = 20047280.

The previous prime is 30229739. The next prime is 30229763. The reversal of 30229761 is 16792203.

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 30229761 - 25 = 30229729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30229763) 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, 25806 + ... + 26951.

It is an arithmetic number, because the mean of its divisors is an integer number (5064768).

Almost surely, 230229761 is an apocalyptic number.

It is an amenable number.

30229761 is a deficient number, since it is larger than the sum of its proper divisors (10288383).

30229761 is a wasteful number, since it uses less digits than its factorization.

30229761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52951.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 30229761 is about 5498.1597830547. The cubic root of 30229761 is about 311.5144794783.

The spelling of 30229761 in words is "thirty million, two hundred twenty-nine thousand, seven hundred sixty-one".

Divisors: 1 3 191 573 52757 158271 10076587 30229761