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1031020100 = 2252111098599
BaseRepresentation
bin111101011101000…
…001111001000100
32122212001020200122
4331131001321010
54102420120400
6250150201112
734356345335
oct7535017104
92585036618
101031020100
11489a90730
12249353198
131357ab586
149ad0428c
15607ac685
hex3d741e44

1031020100 has 72 divisors (see below), whose sum is σ = 2463384000. Its totient is φ = 371433600.

The previous prime is 1031020079. The next prime is 1031020127. The reversal of 1031020100 is 10201301.

1031020100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×10310201004 (a number of 37 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115601 + ... + 124199.

Almost surely, 21031020100 is an apocalyptic number.

1031020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231692000).

1031020100 is an abundant number, since it is smaller than the sum of its proper divisors (1432363900).

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

1031020100 is a wasteful number, since it uses less digits than its factorization.

1031020100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8733 (or 8726 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1031020100 is about 32109.5017089957. The cubic root of 1031020100 is about 1010.2349223167.

Adding to 1031020100 its reverse (10201301), we get a palindrome (1041221401).

The spelling of 1031020100 in words is "one billion, thirty-one million, twenty thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 109 110 218 220 275 436 545 550 1090 1100 1199 2180 2398 2725 4796 5450 5995 8599 10900 11990 17198 23980 29975 34396 42995 59950 85990 94589 119900 171980 189178 214975 378356 429950 472945 859900 937291 945890 1874582 1891780 2364725 3749164 4686455 4729450 9372910 9458900 10310201 18745820 20620402 23432275 41240804 46864550 51551005 93729100 103102010 206204020 257755025 515510050 1031020100