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30020464 = 244014679
BaseRepresentation
bin111001010000…
…1001101110000
32002111012100001
41302201031300
530141123324
62551235344
7513112135
oct162411560
962435301
1030020464
1115a44901
12a078b54
1362b13b6
143db658c
15297ee44
hex1ca1370

30020464 has 20 divisors (see below), whose sum is σ = 58322160. Its totient is φ = 14969600.

The previous prime is 30020413. The next prime is 30020467. The reversal of 30020464 is 46402003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30020467) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4077 + ... + 8755.

It is an arithmetic number, because the mean of its divisors is an integer number (2916108).

Almost surely, 230020464 is an apocalyptic number.

It is an amenable number.

30020464 is a deficient number, since it is larger than the sum of its proper divisors (28301696).

30020464 is a wasteful number, since it uses less digits than its factorization.

30020464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088 (or 5082 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30020464 is about 5479.0933556566. The cubic root of 30020464 is about 310.7938860991.

Adding to 30020464 its reverse (46402003), we get a palindrome (76422467).

The spelling of 30020464 in words is "thirty million, twenty thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 401 802 1604 3208 4679 6416 9358 18716 37432 74864 1876279 3752558 7505116 15010232 30020464