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4987908 = 2232349397
BaseRepresentation
bin10011000001110000000100
3100101102010100
4103001300010
52234103113
6254524100
760253002
oct23016004
910342110
104987908
1128a7542
121806630
131058433
1493ba72
15687d73
hex4c1c04

4987908 has 36 divisors (see below), whose sum is σ = 12676300. Its totient is φ = 1653696.

The previous prime is 4987907. The next prime is 4987921. The reversal of 4987908 is 8097894.

It can be written as a sum of positive squares in 2 ways, for example, as 3504384 + 1483524 = 1872^2 + 1218^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4987901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12366 + ... + 12762.

Almost surely, 24987908 is an apocalyptic number.

It is an amenable number.

4987908 is an abundant number, since it is smaller than the sum of its proper divisors (7688392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4987908 is a wasteful number, since it uses less digits than its factorization.

4987908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 4987908 is about 2233.3624873719. The cubic root of 4987908 is about 170.8596365342.

The spelling of 4987908 in words is "four million, nine hundred eighty-seven thousand, nine hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 349 397 698 794 1047 1191 1396 1588 2094 2382 3141 3573 4188 4764 6282 7146 12564 14292 138553 277106 415659 554212 831318 1246977 1662636 2493954 4987908