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4987071 = 321733203
BaseRepresentation
bin10011000001100010111111
3100101100222100
4103001202333
52234041241
6254520143
760250365
oct23014277
910340870
104987071
1128a6951
121806053
131057c3b
1493b635
156879b6
hex4c18bf

4987071 has 12 divisors (see below), whose sum is σ = 7247448. Its totient is φ = 3304464.

The previous prime is 4987057. The next prime is 4987079. The reversal of 4987071 is 1707894.

It is not a de Polignac number, because 4987071 - 26 = 4987007 is a prime.

It is an Ulam number.

4987071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45 + ... + 3158.

It is an arithmetic number, because the mean of its divisors is an integer number (603954).

Almost surely, 24987071 is an apocalyptic number.

4987071 is a deficient number, since it is larger than the sum of its proper divisors (2260377).

4987071 is a wasteful number, since it uses less digits than its factorization.

4987071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 4987071 is about 2233.1750938966. The cubic root of 4987071 is about 170.8500789190.

It can be divided in two parts, 498 and 7071, that added together give a square (7569 = 872).

The spelling of 4987071 in words is "four million, nine hundred eighty-seven thousand, seventy-one".

Divisors: 1 3 9 173 519 1557 3203 9609 28827 554119 1662357 4987071