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103213331 = 1327129297
BaseRepresentation
bin1100010011011…
…10100100010011
321012012210001222
412021232210103
5202410311311
614124115255
72362204334
oct611564423
9235183058
10103213331
1153296781
122a695b2b
13184ca2a0
14d9ca28b
1590dbadb
hex626e913

103213331 has 8 divisors (see below), whose sum is σ = 111566784. Its totient is φ = 94919040.

The previous prime is 103213321. The next prime is 103213333. The reversal of 103213331 is 133312301.

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 103213331 - 222 = 99019027 is a prime.

It is a super-2 number, since 2×1032133312 = 21305983392231122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103213333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11126 + ... + 18171.

It is an arithmetic number, because the mean of its divisors is an integer number (13945848).

Almost surely, 2103213331 is an apocalyptic number.

103213331 is a deficient number, since it is larger than the sum of its proper divisors (8353453).

103213331 is a wasteful number, since it uses less digits than its factorization.

103213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29581.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 103213331 is about 10159.3961926878. The cubic root of 103213331 is about 469.0782159744.

Adding to 103213331 its reverse (133312301), we get a palindrome (236525632).

The spelling of 103213331 in words is "one hundred three million, two hundred thirteen thousand, three hundred thirty-one".

Divisors: 1 13 271 3523 29297 380861 7939487 103213331