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4890981 = 35093203
BaseRepresentation
bin10010101010000101100101
3100012111011110
4102222011211
52223002411
6252455233
756400264
oct22520545
910174143
104890981
112840737
12177a519
131023294
149145db
156692a6
hex4aa165

4890981 has 8 divisors (see below), whose sum is σ = 6536160. Its totient is φ = 3253232.

The previous prime is 4890971. The next prime is 4890983. The reversal of 4890981 is 1890984.

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

It is a cyclic number.

It is not a de Polignac number, because 4890981 - 213 = 4882789 is a prime.

It is a super-2 number, since 2×48909812 = 47843390284722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4890983) 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, 75 + ... + 3128.

It is an arithmetic number, because the mean of its divisors is an integer number (817020).

Almost surely, 24890981 is an apocalyptic number.

It is an amenable number.

4890981 is a deficient number, since it is larger than the sum of its proper divisors (1645179).

4890981 is a wasteful number, since it uses less digits than its factorization.

4890981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 4890981 is about 2211.5562393934. The cubic root of 4890981 is about 169.7456519384.

The spelling of 4890981 in words is "four million, eight hundred ninety thousand, nine hundred eighty-one".

Divisors: 1 3 509 1527 3203 9609 1630327 4890981