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4987143 = 33726387
BaseRepresentation
bin10011000001100100000111
3100101101002000
4103001210013
52234042033
6254520343
760250530
oct23014407
910341060
104987143
1128a6a07
1218060b3
131057c95
1493b687
15687a13
hex4c1907

4987143 has 16 divisors (see below), whose sum is σ = 8444160. Its totient is φ = 2849688.

The previous prime is 4987127. The next prime is 4987207. The reversal of 4987143 is 3417894.

It is a happy number.

It is not a de Polignac number, because 4987143 - 24 = 4987127 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 4987098 and 4987107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4987943) 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, 13005 + ... + 13382.

It is an arithmetic number, because the mean of its divisors is an integer number (527760).

Almost surely, 24987143 is an apocalyptic number.

4987143 is a deficient number, since it is larger than the sum of its proper divisors (3457017).

4987143 is a wasteful number, since it uses less digits than its factorization.

4987143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26403 (or 26397 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 4987143 is about 2233.1912143836. The cubic root of 4987143 is about 170.8509011215.

The spelling of 4987143 in words is "four million, nine hundred eighty-seven thousand, one hundred forty-three".

Divisors: 1 3 7 9 21 27 63 189 26387 79161 184709 237483 554127 712449 1662381 4987143