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103102231 = 569181199
BaseRepresentation
bin1100010010100…
…11011100010111
321012000010200011
412021103130113
5202343232411
614121501051
72361232411
oct611233427
9235003604
10103102231
1153220261
122a641787
131848b84b
14d99b9b1
1590b8c21
hex6253717

103102231 has 4 divisors (see below), whose sum is σ = 103284000. Its totient is φ = 102920464.

The previous prime is 103102201. The next prime is 103102243. The reversal of 103102231 is 132201301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132201301 = 137964973.

It is a cyclic number.

It is not a de Polignac number, because 103102231 - 25 = 103102199 is a prime.

It is a super-2 number, since 2×1031022312 = 21260140074354722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103102201) 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, 90031 + ... + 91168.

It is an arithmetic number, because the mean of its divisors is an integer number (25821000).

Almost surely, 2103102231 is an apocalyptic number.

103102231 is a deficient number, since it is larger than the sum of its proper divisors (181769).

103102231 is an equidigital number, since it uses as much as digits as its factorization.

103102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181768.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103102231 is about 10153.9268758446. The cubic root of 103102231 is about 468.9098485120.

Adding to 103102231 its reverse (132201301), we get a palindrome (235303532).

The spelling of 103102231 in words is "one hundred three million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 569 181199 103102231