Search a number
-
+
103068021 = 3721793917
BaseRepresentation
bin1100010010010…
…11000101110101
321011221101202010
412021023011311
5202341134041
614121034433
72361030600
oct611130565
9234841663
10103068021
11531a7591
122a625a19
13184790c4
14d98d337
1590ada16
hex624b175

103068021 has 24 divisors (see below), whose sum is σ = 160794720. Its totient is φ = 58552032.

The previous prime is 103068013. The next prime is 103068023. The reversal of 103068021 is 120860301.

It is not a de Polignac number, because 103068021 - 23 = 103068013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103068023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24355 + ... + 28271.

It is an arithmetic number, because the mean of its divisors is an integer number (6699780).

Almost surely, 2103068021 is an apocalyptic number.

It is an amenable number.

103068021 is a deficient number, since it is larger than the sum of its proper divisors (57726699).

103068021 is a wasteful number, since it uses less digits than its factorization.

103068021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113 (or 4106 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 103068021 is about 10152.2421661424. The cubic root of 103068021 is about 468.8579803151.

The spelling of 103068021 in words is "one hundred three million, sixty-eight thousand, twenty-one".

Divisors: 1 3 7 21 49 147 179 537 1253 3759 3917 8771 11751 26313 27419 82257 191933 575799 701143 2103429 4908001 14724003 34356007 103068021