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30500454 = 2312174177
BaseRepresentation
bin111010001011…
…0011001100110
32010101120202110
41310112121212
530302003304
63005421450
7520151415
oct164263146
963346673
1030500454
1116242496
12a26a886
13641ba0a
14409d47c
152a27289
hex1d16666

30500454 has 16 divisors (see below), whose sum is σ = 61065648. Its totient is φ = 10156032.

The previous prime is 30500443. The next prime is 30500467. The reversal of 30500454 is 45400503.

It is a happy number.

It is a super-2 number, since 2×305004542 = 1860555388412232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30500454.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5214 + ... + 9390.

It is an arithmetic number, because the mean of its divisors is an integer number (3816603).

Almost surely, 230500454 is an apocalyptic number.

30500454 is an abundant number, since it is smaller than the sum of its proper divisors (30565194).

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

30500454 is a wasteful number, since it uses less digits than its factorization.

30500454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 30500454 is about 5522.7216116694. The cubic root of 30500454 is about 312.4415387173.

Adding to 30500454 its reverse (45400503), we get a palindrome (75900957).

The spelling of 30500454 in words is "thirty million, five hundred thousand, four hundred fifty-four".

Divisors: 1 2 3 6 1217 2434 3651 4177 7302 8354 12531 25062 5083409 10166818 15250227 30500454