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103066031 = 250341177
BaseRepresentation
bin1100010010010…
…10100110101111
321011221022000102
412021022212233
5202341103111
614121021315
72361022025
oct611124657
9234838012
10103066031
11531a6042
122a62483b
1318478223
14d98c715
1590ad13b
hex624a9af

103066031 has 4 divisors (see below), whose sum is σ = 103109712. Its totient is φ = 103022352.

The previous prime is 103066021. The next prime is 103066037. The reversal of 103066031 is 130660301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130660301 = 229570569.

It is a cyclic number.

It is not a de Polignac number, because 103066031 - 210 = 103065007 is a prime.

It is a super-2 number, since 2×1030660312 = 21245213492185922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103065994 and 103066012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103066037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18086 + ... + 23091.

It is an arithmetic number, because the mean of its divisors is an integer number (25777428).

Almost surely, 2103066031 is an apocalyptic number.

103066031 is a deficient number, since it is larger than the sum of its proper divisors (43681).

103066031 is an equidigital number, since it uses as much as digits as its factorization.

103066031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43680.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 103066031 is about 10152.1441577629. The cubic root of 103066031 is about 468.8549627823.

The spelling of 103066031 in words is "one hundred three million, sixty-six thousand, thirty-one".

Divisors: 1 2503 41177 103066031