30948901929 has 45 divisors (see below), whose sum is σ = 50845946151. Its totient is φ = 18746354880.

The previous prime is 30948901901. The next prime is 30948901937. The reversal of 30948901929 is 92910984903.

The square root of 30948901929 is 175923.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 15683805225 + 15265096704 = 125235^2 + 123552^2 .

It is not a de Polignac number, because 30948901929 - 2¹¹ = 30948899881 is a prime.

It is a super-2 number, since 2×30948901929² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30948901229) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 17415489 + ... + 17417265.

Almost surely, 2^30948901929 is an apocalyptic number.

30948901929 is the 175923-rd square number.

30948901929 is the 87962-nd centered octagonal number.

It is an amenable number.

30948901929 is a deficient number, since it is larger than the sum of its proper divisors (19897044222).

30948901929 is an frugal number, since it uses more digits than its factorization.

30948901929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 54.

The spelling of 30948901929 in words is "thirty billion, nine hundred forty-eight million, nine hundred one thousand, nine hundred twenty-nine".