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10372821 = 310333569
BaseRepresentation
bin100111100100…
…011011010101
3201111222211120
4213210123111
510123412241
61010154153
7154111314
oct47443325
921458746
1010372821
115945288
123582959
1321c2484
14154027b
15d9d666
hex9e46d5

10372821 has 8 divisors (see below), whose sum is σ = 13965120. Its totient is φ = 6847872.

The previous prime is 10372787. The next prime is 10372829. The reversal of 10372821 is 12827301.

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

It is not a de Polignac number, because 10372821 - 215 = 10340053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10372791 and 10372800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10372829) 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, 16476 + ... + 17093.

It is an arithmetic number, because the mean of its divisors is an integer number (1745640).

Almost surely, 210372821 is an apocalyptic number.

It is an amenable number.

10372821 is a deficient number, since it is larger than the sum of its proper divisors (3592299).

10372821 is a wasteful number, since it uses less digits than its factorization.

10372821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33675.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 10372821 is about 3220.6864175203. The cubic root of 10372821 is about 218.0882635045.

The spelling of 10372821 in words is "ten million, three hundred seventy-two thousand, eight hundred twenty-one".

Divisors: 1 3 103 309 33569 100707 3457607 10372821