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103320031 = 615213251
BaseRepresentation
bin1100010100010…
…00100111011111
321012102012102211
412022020213133
5202422220111
614130301251
72363130403
oct612104737
9235365384
10103320031
1153359961
122a727827
1318536a19
14da17103
15910d521
hex62889df

103320031 has 8 divisors (see below), whose sum is σ = 105247728. Its totient is φ = 101400000.

The previous prime is 103320001. The next prime is 103320037. The reversal of 103320031 is 130023301.

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 103320031 - 27 = 103319903 is a prime.

It is a super-2 number, since 2×1033200312 = 21350057611681922, 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 = 103319993 and 103320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103320037) 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, 30156 + ... + 33406.

It is an arithmetic number, because the mean of its divisors is an integer number (13155966).

Almost surely, 2103320031 is an apocalyptic number.

103320031 is a deficient number, since it is larger than the sum of its proper divisors (1927697).

103320031 is an equidigital number, since it uses as much as digits as its factorization.

103320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 103320031 is about 10164.6461325518. The cubic root of 103320031 is about 469.2398017177.

Adding to 103320031 its reverse (130023301), we get a palindrome (233343332).

The spelling of 103320031 in words is "one hundred three million, three hundred twenty thousand, thirty-one".

Divisors: 1 61 521 3251 31781 198311 1693771 103320031