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103212093 = 3671074799
BaseRepresentation
bin1100010011011…
…10010000111101
321012012201101010
412021232100331
5202410241333
614124105433
72362200615
oct611562075
9235181333
10103212093
1153295856
122a695279
13184c985a
14d9c9a45
1590db563
hex626e43d

103212093 has 16 divisors (see below), whose sum is σ = 141004800. Its totient is φ = 67133616.

The previous prime is 103212071. The next prime is 103212103. The reversal of 103212093 is 390212301.

It is a happy number.

It is not a de Polignac number, because 103212093 - 28 = 103211837 is a prime.

It is a super-2 number, since 2×1032120932 = 21305472282881298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103212023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19108 + ... + 23906.

It is an arithmetic number, because the mean of its divisors is an integer number (8812800).

Almost surely, 2103212093 is an apocalyptic number.

It is an amenable number.

103212093 is a deficient number, since it is larger than the sum of its proper divisors (37792707).

103212093 is a wasteful number, since it uses less digits than its factorization.

103212093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4976.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 103212093 is about 10159.3352636873. The cubic root of 103212093 is about 469.0763405024.

Adding to 103212093 its reverse (390212301), we get a palindrome (493424394).

The spelling of 103212093 in words is "one hundred three million, two hundred twelve thousand, ninety-three".

Divisors: 1 3 67 107 201 321 4799 7169 14397 21507 321533 513493 964599 1540479 34404031 103212093