2931890130 has 72 divisors (see below), whose sum is σ = 8214481548. Its totient is φ = 721240128.

The previous prime is 2931890099. The next prime is 2931890147. The reversal of 2931890130 is 310981392.

2931890130 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2728913121 + 202977009 = 52239^2 + 14247^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1851319 + ... + 1852901.

Almost surely, 2^2931890130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2931890130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4107240774).

2931890130 is an abundant number, since it is smaller than the sum of its proper divisors (5282591418).

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

2931890130 is a wasteful number, since it uses less digits than its factorization.

2931890130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192 (or 1606 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 2931890130 is about 54146.9309379581. The cubic root of 2931890130 is about 1431.2513099026.

The spelling of 2931890130 in words is "two billion, nine hundred thirty-one million, eight hundred ninety thousand, one hundred thirty".