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110001020 = 22531177421
BaseRepresentation
bin1101000111001…
…11101101111100
321122222122000212
412203213231330
5211130013040
614525411552
72503664453
oct643475574
9248878025
10110001020
1157102438
1230a09bb8
1319a3597c
1410875b9a
1599ccd65
hex68e7b7c

110001020 has 24 divisors (see below), whose sum is σ = 238455168. Its totient is φ = 42580800.

The previous prime is 110000993. The next prime is 110001053. The reversal of 110001020 is 20100011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 110000995 and 110001013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88091 + ... + 89330.

It is an arithmetic number, because the mean of its divisors is an integer number (9935632).

Almost surely, 2110001020 is an apocalyptic number.

110001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110001020 is an abundant number, since it is smaller than the sum of its proper divisors (128454148).

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

110001020 is a wasteful number, since it uses less digits than its factorization.

110001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177461 (or 177459 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 110001020 is about 10488.1371081808. The cubic root of 110001020 is about 479.1434666860.

Adding to 110001020 its reverse (20100011), we get a palindrome (130101031).

The spelling of 110001020 in words is "one hundred ten million, one thousand, twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 177421 354842 709684 887105 1774210 3548420 5500051 11000102 22000204 27500255 55000510 110001020