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82907949 = 341965957
BaseRepresentation
bin1001111000100…
…01001100101101
312210000011022210
410330101030231
5132211023244
612121001033
72024464065
oct474211455
9183004283
1082907949
1142887a73
1223923179
131423ab77
14b0223a5
15742a4b9
hex4f1132d

82907949 has 8 divisors (see below), whose sum is σ = 110809440. Its totient is φ = 55139216.

The previous prime is 82907947. The next prime is 82907983. The reversal of 82907949 is 94970928.

It is a happy number.

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 82907949 - 21 = 82907947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82907898 and 82907907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82907947) 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, 31722 + ... + 34235.

It is an arithmetic number, because the mean of its divisors is an integer number (13851180).

Almost surely, 282907949 is an apocalyptic number.

It is an amenable number.

82907949 is a deficient number, since it is larger than the sum of its proper divisors (27901491).

82907949 is a wasteful number, since it uses less digits than its factorization.

82907949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66379.

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 82907949 is about 9105.3802227035. The cubic root of 82907949 is about 436.0457492745.

The spelling of 82907949 in words is "eighty-two million, nine hundred seven thousand, nine hundred forty-nine".

Divisors: 1 3 419 1257 65957 197871 27635983 82907949