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1020152464 = 24312056759
BaseRepresentation
bin111100110011100…
…100101010010000
32122002121010002121
4330303210222100
54042124334324
6245121224024
734165103302
oct7463445220
92562533077
101020152464
11483938711
12245792014
13133474b16
14996b5972
155e8625e4
hex3cce4a90

1020152464 has 20 divisors (see below), whose sum is σ = 2040305920. Its totient is φ = 493621920.

The previous prime is 1020152411. The next prime is 1020152467. The reversal of 1020152464 is 4642510201.

It is a happy number.

1020152464 is an admirable number.

It is a super-2 number, since 2×10201524642 = 2081422099610542592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020152467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1027884 + ... + 1028875.

It is an arithmetic number, because the mean of its divisors is an integer number (102015296).

Almost surely, 21020152464 is an apocalyptic number.

It is an amenable number.

1020152464 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020152464 is a wasteful number, since it uses less digits than its factorization.

1020152464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056798 (or 2056792 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1020152464 is about 31939.8256726614. The cubic root of 1020152464 is about 1006.6728618734.

Adding to 1020152464 its reverse (4642510201), we get a palindrome (5662662665).

The spelling of 1020152464 in words is "one billion, twenty million, one hundred fifty-two thousand, four hundred sixty-four".

Divisors: 1 2 4 8 16 31 62 124 248 496 2056759 4113518 8227036 16454072 32908144 63759529 127519058 255038116 510076232 1020152464