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82152403 = 4311531657
BaseRepresentation
bin1001110010110…
…00101111010011
312201120202220121
410321120233103
5132012334103
612052451111
72015166244
oct471305723
9181522817
1082152403
1142411353
1223619a97
1314034cb8
14aca6ccb
15732b6bd
hex4e58bd3

82152403 has 8 divisors (see below), whose sum is σ = 84186608. Its totient is φ = 80123904.

The previous prime is 82152391. The next prime is 82152407. The reversal of 82152403 is 30425128.

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 82152403 - 225 = 48597971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82152407) 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, 48751 + ... + 50407.

It is an arithmetic number, because the mean of its divisors is an integer number (10523326).

Almost surely, 282152403 is an apocalyptic number.

82152403 is a deficient number, since it is larger than the sum of its proper divisors (2034205).

82152403 is a wasteful number, since it uses less digits than its factorization.

82152403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 82152403 is about 9063.7962797053. The cubic root of 82152403 is about 434.7171332274.

The spelling of 82152403 in words is "eighty-two million, one hundred fifty-two thousand, four hundred three".

Divisors: 1 43 1153 1657 49579 71251 1910521 82152403