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1020001108 = 2272943131223
BaseRepresentation
bin111100110010111…
…111101101010100
32122002022102110211
4330302333231110
54042110013413
6245114055204
734163603110
oct7462775524
92562272424
101020001108
11483844a25
1224571a504
13133420c69
1499676740
155e83283d
hex3ccbfb54

1020001108 has 96 divisors (see below), whose sum is σ = 2185666560. Its totient is φ = 407272320.

The previous prime is 1020001063. The next prime is 1020001133. The reversal of 1020001108 is 8011000201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4573885 + ... + 4574107.

It is an arithmetic number, because the mean of its divisors is an integer number (22767360).

Almost surely, 21020001108 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020001108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1092833280).

1020001108 is an abundant number, since it is smaller than the sum of its proper divisors (1165665452).

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

1020001108 is a wasteful number, since it uses less digits than its factorization.

1020001108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 1020001108 is about 31937.4561917508. The cubic root of 1020001108 is about 1006.6230740495.

Adding to 1020001108 its reverse (8011000201), we get a palindrome (9031001309).

The spelling of 1020001108 in words is "one billion, twenty million, one thousand, one hundred eight".

Divisors: 1 2 4 7 14 28 29 43 58 86 116 131 172 203 223 262 301 406 446 524 602 812 892 917 1204 1247 1561 1834 2494 3122 3668 3799 4988 5633 6244 6467 7598 8729 9589 11266 12934 15196 17458 19178 22532 25868 26593 29213 34916 38356 39431 45269 53186 58426 67123 78862 90538 106372 116852 134246 157724 163357 181076 204491 268492 278081 326714 408982 556162 653428 817964 847177 1112324 1143499 1256159 1694354 1946567 2286998 2512318 3388708 3893134 4573996 5024636 5930239 7786268 8793113 11860478 17586226 23720956 35172452 36428611 72857222 145714444 255000277 510000554 1020001108