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30914484 = 223231011109
BaseRepresentation
bin111010111101…
…1011110110100
32011011121200220
41311323132310
530403230414
63022334340
7523524456
oct165733664
964147626
1030914484
11164a5567
12a42a3b0
1365352c3
14416a2d6
152aa9ca9
hex1d7b7b4

30914484 has 48 divisors (see below), whose sum is σ = 76083840. Its totient is φ = 9750400.

The previous prime is 30914459. The next prime is 30914489. The reversal of 30914484 is 48441903.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30914489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27322 + ... + 28430.

It is an arithmetic number, because the mean of its divisors is an integer number (1585080).

Almost surely, 230914484 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30914484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38041920).

30914484 is an abundant number, since it is smaller than the sum of its proper divisors (45169356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30914484 is a wasteful number, since it uses less digits than its factorization.

30914484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1238 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 30914484 is about 5560.0794958346. The cubic root of 30914484 is about 313.8489408227.

The spelling of 30914484 in words is "thirty million, nine hundred fourteen thousand, four hundred eighty-four".

Divisors: 1 2 3 4 6 12 23 46 69 92 101 138 202 276 303 404 606 1109 1212 2218 2323 3327 4436 4646 6654 6969 9292 13308 13938 25507 27876 51014 76521 102028 112009 153042 224018 306084 336027 448036 672054 1344108 2576207 5152414 7728621 10304828 15457242 30914484