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103283431 = 611693171
BaseRepresentation
bin1100010011111…
…11101011100111
321012100100020021
412021333223213
5202420032211
614125420011
72362615606
oct611775347
9235310207
10103283431
1153334409
122a70a607
1318523174
14da07a3d
159102771
hex627fae7

103283431 has 4 divisors (see below), whose sum is σ = 104976664. Its totient is φ = 101590200.

The previous prime is 103283419. The next prime is 103283443. The reversal of 103283431 is 134382301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134382301 = 340739443.

It is an interprime number because it is at equal distance from previous prime (103283419) and next prime (103283443).

It is a cyclic number.

It is not a de Polignac number, because 103283431 - 25 = 103283399 is a prime.

It is a super-2 number, since 2×1032834312 = 21334934238263522, 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 = 103283396 and 103283405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103283461) 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, 846525 + ... + 846646.

It is an arithmetic number, because the mean of its divisors is an integer number (26244166).

Almost surely, 2103283431 is an apocalyptic number.

103283431 is a deficient number, since it is larger than the sum of its proper divisors (1693233).

103283431 is an equidigital number, since it uses as much as digits as its factorization.

103283431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693232.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 103283431 is about 10162.8456152792. The cubic root of 103283431 is about 469.1843874710.

The spelling of 103283431 in words is "one hundred three million, two hundred eighty-three thousand, four hundred thirty-one".

Divisors: 1 61 1693171 103283431