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110031020 = 225113311511
BaseRepresentation
bin1101000111011…
…11000010101100
321200001011011222
412203233002230
5211131443040
614530202512
72504151101
oct643570254
9250034158
10110031020
1157122a30
1230a23438
1319a46518
1410882aa8
1599d6bb5
hex68ef0ac

110031020 has 48 divisors (see below), whose sum is σ = 252999936. Its totient is φ = 39864000.

The previous prime is 110031013. The next prime is 110031041. The reversal of 110031020 is 20130011.

It is a junction number, because it is equal to n+sod(n) for n = 110030989 and 110031007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72065 + ... + 73575.

It is an arithmetic number, because the mean of its divisors is an integer number (5270832).

Almost surely, 2110031020 is an apocalyptic number.

110031020 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 110031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126499968).

110031020 is an abundant number, since it is smaller than the sum of its proper divisors (142968916).

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

110031020 is a wasteful number, since it uses less digits than its factorization.

110031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862 (or 1860 counting only the distinct ones).

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

The square root of 110031020 is about 10489.5671979353. The cubic root of 110031020 is about 479.1870208199.

Adding to 110031020 its reverse (20130011), we get a palindrome (130161031).

The spelling of 110031020 in words is "one hundred ten million, thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 331 662 1324 1511 1655 3022 3310 3641 6044 6620 7282 7555 14564 15110 16621 18205 30220 33242 36410 66484 72820 83105 166210 332420 500141 1000282 2000564 2500705 5001410 5501551 10002820 11003102 22006204 27507755 55015510 110031020