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4831990 = 251373527
BaseRepresentation
bin10010011011101011110110
3100002111020121
4102123223312
52214110430
6251322154
756033302
oct22335366
910074217
104831990
112800389
12175035a
131002487
148dad02
15656a7a
hex49baf6

4831990 has 16 divisors (see below), whose sum is σ = 8763552. Its totient is φ = 1918144.

The previous prime is 4831987. The next prime is 4831991. The reversal of 4831990 is 991384.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4831991) 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, 394 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (547722).

Almost surely, 24831990 is an apocalyptic number.

4831990 is a deficient number, since it is larger than the sum of its proper divisors (3931562).

4831990 is a wasteful number, since it uses less digits than its factorization.

4831990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 4831990 is about 2198.1787916364. The cubic root of 4831990 is about 169.0604454487.

Subtracting from 4831990 its reverse (991384), we obtain a triangular number (3840606 = T2771).

The spelling of 4831990 in words is "four million, eight hundred thirty-one thousand, nine hundred ninety".

Divisors: 1 2 5 10 137 274 685 1370 3527 7054 17635 35270 483199 966398 2415995 4831990