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103312231 = 1167713873
BaseRepresentation
bin1100010100001…
…10101101100111
321012101210201221
412022012231213
5202421442411
614130201211
72363065561
oct612065547
9235353657
10103312231
1153354010
122a723207
13185332c9
14da14331
15910b071
hex6286b67

103312231 has 8 divisors (see below), whose sum is σ = 112878864. Its totient is φ = 93774720.

The previous prime is 103312229. The next prime is 103312241. The reversal of 103312231 is 132213301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103312231 - 21 = 103312229 is a prime.

It is a super-2 number, since 2×1033122312 = 21346834148394722, 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 (103312241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511 + ... + 14383.

It is an arithmetic number, because the mean of its divisors is an integer number (14109858).

Almost surely, 2103312231 is an apocalyptic number.

103312231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103312231 is a deficient number, since it is larger than the sum of its proper divisors (9566633).

103312231 is a wasteful number, since it uses less digits than its factorization.

103312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14561.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 103312231 is about 10164.2624424992. The cubic root of 103312231 is about 469.2279932215.

Adding to 103312231 its reverse (132213301), we get a palindrome (235525532).

The spelling of 103312231 in words is "one hundred three million, three hundred twelve thousand, two hundred thirty-one".

Divisors: 1 11 677 7447 13873 152603 9392021 103312231