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30492456 = 23329193227
BaseRepresentation
bin111010001010…
…0011100101000
32010101011210020
41310110130220
530301224311
63005320440
7520116201
oct164243450
963334706
1030492456
1116237485
12a266120
136418197
14409a5a8
152a24c06
hex1d14728

30492456 has 64 divisors (see below), whose sum is σ = 79617600. Its totient is φ = 9719808.

The previous prime is 30492443. The next prime is 30492467. The reversal of 30492456 is 65429403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134215 + ... + 134441.

It is an arithmetic number, because the mean of its divisors is an integer number (1244025).

Almost surely, 230492456 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 30492456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39808800).

30492456 is an abundant number, since it is smaller than the sum of its proper divisors (49125144).

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

30492456 is a wasteful number, since it uses less digits than its factorization.

30492456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 30492456 is about 5521.9974646861. The cubic root of 30492456 is about 312.4142262727.

The spelling of 30492456 in words is "thirty million, four hundred ninety-two thousand, four hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 174 193 227 232 348 386 454 579 681 696 772 908 1158 1362 1544 1816 2316 2724 4632 5448 5597 6583 11194 13166 16791 19749 22388 26332 33582 39498 43811 44776 52664 67164 78996 87622 131433 134328 157992 175244 262866 350488 525732 1051464 1270519 2541038 3811557 5082076 7623114 10164152 15246228 30492456