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1020302112 = 25364316529
BaseRepresentation
bin111100110100001…
…001001100100000
32122002212201101010
4330310021030200
54042144131422
6245124340520
734166265504
oct7464111440
92562781333
101020302112
11483a30095
12245844740
131334c7c7b
1499714304
155e891b0c
hex3cd09320

1020302112 has 48 divisors (see below), whose sum is σ = 2682620640. Its totient is φ = 339551232.

The previous prime is 1020302089. The next prime is 1020302113. The reversal of 1020302112 is 2112030201.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1020302113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53464 + ... + 69992.

It is an arithmetic number, because the mean of its divisors is an integer number (55887930).

Almost surely, 21020302112 is an apocalyptic number.

1020302112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020302112 is an abundant number, since it is smaller than the sum of its proper divisors (1662318528).

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

1020302112 is a wasteful number, since it uses less digits than its factorization.

1020302112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17185 (or 17177 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1020302112 is about 31942.1682419963. The cubic root of 1020302112 is about 1006.7220830177.

Adding to 1020302112 its reverse (2112030201), we get a palindrome (3132332313).

The spelling of 1020302112 in words is "one billion, twenty million, three hundred two thousand, one hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 643 1286 1929 2572 3858 5144 7716 10288 15432 16529 20576 30864 33058 49587 61728 66116 99174 132232 198348 264464 396696 528928 793392 1586784 10628147 21256294 31884441 42512588 63768882 85025176 127537764 170050352 255075528 340100704 510151056 1020302112