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1020220488 = 23337674749
BaseRepresentation
bin111100110011110…
…101010001001000
32122002201120102000
4330303311101020
54042134023423
6245122511000
734165505520
oct7463652110
92562646360
101020220488
11483984831
12245805460
13133499a81
14996d2680
155e877843
hex3ccf5448

1020220488 has 64 divisors (see below), whose sum is σ = 3238800000. Its totient is φ = 291491136.

The previous prime is 1020220483. The next prime is 1020220511. The reversal of 1020220488 is 8840220201.

1020220488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1020220483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335863 + ... + 338886.

It is an arithmetic number, because the mean of its divisors is an integer number (50606250).

Almost surely, 21020220488 is an apocalyptic number.

1020220488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1020220488 is an abundant number, since it is smaller than the sum of its proper divisors (2218579512).

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

1020220488 is a wasteful number, since it uses less digits than its factorization.

1020220488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674771 (or 674761 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 1020220488 is about 31940.8905323568. The cubic root of 1020220488 is about 1006.6952364351.

Adding to 1020220488 its reverse (8840220201), we get a palindrome (9860440689).

The spelling of 1020220488 in words is "one billion, twenty million, two hundred twenty thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 674749 1349498 2024247 2698996 4048494 4723243 5397992 6072741 8096988 9446486 12145482 14169729 16193976 18218223 18892972 24290964 28339458 36436446 37785944 42509187 48581928 56678916 72872892 85018374 113357832 127527561 145745784 170036748 255055122 340073496 510110244 1020220488