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4990210031 = 39443126517
BaseRepresentation
bin1001010010111000…
…01000111111101111
3110212202221221020202
410221130020333233
540204443210111
62143101304115
7234443041202
oct45134107757
913782857222
104990210031
112130930724
12b7326503b
13616b11801
14354a73939
151e3170b3b
hex129708fef

4990210031 has 4 divisors (see below), whose sum is σ = 4990375992. Its totient is φ = 4990044072.

The previous prime is 4990210021. The next prime is 4990210037. The reversal of 4990210031 is 1300120994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1300120994 = 2650060497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-4990210031 is a prime.

It is a super-2 number, since 2×49902100312 = 49804392306986041922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4990209976 and 4990210003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990210037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23816 + ... + 102701.

It is an arithmetic number, because the mean of its divisors is an integer number (1247593998).

Almost surely, 24990210031 is an apocalyptic number.

4990210031 is a deficient number, since it is larger than the sum of its proper divisors (165961).

4990210031 is a wasteful number, since it uses less digits than its factorization.

4990210031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165960.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 4990210031 is about 70641.4186649730. The cubic root of 4990210031 is about 1708.8591767158.

The spelling of 4990210031 in words is "four billion, nine hundred ninety million, two hundred ten thousand, thirty-one".

Divisors: 1 39443 126517 4990210031