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82472403 = 31312716651
BaseRepresentation
bin1001110101001…
…10110111010011
312202012000212110
410322212313103
5132103104103
612103400403
72021001216
oct472466723
9182160773
1082472403
114260a812
1223753103
1314117850
14ad4b77d
157391403
hex4ea6dd3

82472403 has 16 divisors (see below), whose sum is σ = 119361536. Its totient is φ = 50349600.

The previous prime is 82472381. The next prime is 82472437. The reversal of 82472403 is 30427428.

It is not a de Polignac number, because 82472403 - 212 = 82468307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82472003) 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, 3373 + ... + 13278.

It is an arithmetic number, because the mean of its divisors is an integer number (7460096).

Almost surely, 282472403 is an apocalyptic number.

82472403 is a deficient number, since it is larger than the sum of its proper divisors (36889133).

82472403 is a wasteful number, since it uses less digits than its factorization.

82472403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16794.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 82472403 is about 9081.4317703763. The cubic root of 82472403 is about 435.2808385997.

The spelling of 82472403 in words is "eighty-two million, four hundred seventy-two thousand, four hundred three".

Divisors: 1 3 13 39 127 381 1651 4953 16651 49953 216463 649389 2114677 6344031 27490801 82472403