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103212529 = 7137310739
BaseRepresentation
bin1100010011011…
…10010111110001
321012012201222021
412021232113301
5202410300104
614124111441
72362202110
oct611562761
9235181867
10103212529
1153296112
122a695581
13184c9b04
14d9c9c77
1590db754
hex626e5f1

103212529 has 8 divisors (see below), whose sum is σ = 118054080. Its totient is φ = 88395216.

The previous prime is 103212493. The next prime is 103212563. The reversal of 103212529 is 925212301.

It is a happy number.

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

It is not a de Polignac number, because 103212529 - 27 = 103212401 is a prime.

It is a super-2 number, since 2×1032125292 = 21305652285151682, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a pancake number, because a pancake can be divided into 103212529 parts by 14367 straight cuts.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103212589) 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, 4242 + ... + 14980.

It is an arithmetic number, because the mean of its divisors is an integer number (14756760).

Almost surely, 2103212529 is an apocalyptic number.

It is an amenable number.

103212529 is a deficient number, since it is larger than the sum of its proper divisors (14841551).

103212529 is a wasteful number, since it uses less digits than its factorization.

103212529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12119.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 103212529 is about 10159.3567217615. The cubic root of 103212529 is about 469.0770010096.

The spelling of 103212529 in words is "one hundred three million, two hundred twelve thousand, five hundred twenty-nine".

Divisors: 1 7 1373 9611 10739 75173 14744647 103212529