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30841418 = 219977491
BaseRepresentation
bin111010110100…
…1101001001010
32011000220110202
41311221221022
530343411133
63021012202
7523101446
oct165515112
964026422
1030841418
1116455683
12a3b4062
13650ac7a
14414b826
152a932e8
hex1d69a4a

30841418 has 8 divisors (see below), whose sum is σ = 46495200. Its totient is φ = 15343020.

The previous prime is 30841411. The next prime is 30841453. The reversal of 30841418 is 81414803.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30841411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38348 + ... + 39143.

It is an arithmetic number, because the mean of its divisors is an integer number (5811900).

Almost surely, 230841418 is an apocalyptic number.

30841418 is a deficient number, since it is larger than the sum of its proper divisors (15653782).

30841418 is a wasteful number, since it uses less digits than its factorization.

30841418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77692.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 30841418 is about 5553.5050193549. The cubic root of 30841418 is about 313.6014864070.

The spelling of 30841418 in words is "thirty million, eight hundred forty-one thousand, four hundred eighteen".

Divisors: 1 2 199 398 77491 154982 15420709 30841418