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82903731 = 335817717
BaseRepresentation
bin1001111000100…
…00001010110011
312202222221112120
410330100022303
5132210404411
612120525323
72024445561
oct474201263
9182887476
1082903731
1142884889
1223920843
1314238c81
14b020a31
157429106
hex4f102b3

82903731 has 8 divisors (see below), whose sum is σ = 110583504. Its totient is φ = 55246560.

The previous prime is 82903727. The next prime is 82903757. The reversal of 82903731 is 13730928.

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

It is not a de Polignac number, because 82903731 - 22 = 82903727 is a prime.

It is a super-2 number, since 2×829037312 = 13746057227440722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 82903692 and 82903701.

It is not an unprimeable number, because it can be changed into a prime (82903231) 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, 6885 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (13822938).

Almost surely, 282903731 is an apocalyptic number.

82903731 is a deficient number, since it is larger than the sum of its proper divisors (27679773).

82903731 is a wasteful number, since it uses less digits than its factorization.

82903731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 82903731 is about 9105.1485984579. The cubic root of 82903731 is about 436.0383544381.

It can be divided in two parts, 8290 and 3731, that added together give a palindrome (12021).

The spelling of 82903731 in words is "eighty-two million, nine hundred three thousand, seven hundred thirty-one".

Divisors: 1 3 3581 7717 10743 23151 27634577 82903731