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103047131 = 1131302191
BaseRepresentation
bin1100010010001…
…01111111011011
321011220100002102
412021011333123
5202340002011
614120354015
72360612645
oct611057733
9234810072
10103047131
1153192920
122a61590b
131846c745
14d985895
1590a773b
hex6245fdb

103047131 has 8 divisors (see below), whose sum is σ = 116041728. Its totient is φ = 90657000.

The previous prime is 103047103. The next prime is 103047143. The reversal of 103047131 is 131740301.

It is a happy number.

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 103047131 - 26 = 103047067 is a prime.

It is a super-2 number, since 2×1030471312 = 21237422414662322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (103047151) 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, 150755 + ... + 151436.

It is an arithmetic number, because the mean of its divisors is an integer number (14505216).

Almost surely, 2103047131 is an apocalyptic number.

103047131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103047131 is a deficient number, since it is larger than the sum of its proper divisors (12994597).

103047131 is a wasteful number, since it uses less digits than its factorization.

103047131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302233.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 103047131 is about 10151.2132772393. The cubic root of 103047131 is about 468.8263018665.

Adding to 103047131 its reverse (131740301), we get a palindrome (234787432).

The spelling of 103047131 in words is "one hundred three million, forty-seven thousand, one hundred thirty-one".

Divisors: 1 11 31 341 302191 3324101 9367921 103047131