30161700 has 72 divisors (see below), whose sum is σ = 96972960. Its totient is φ = 8042400.

The previous prime is 30161693. The next prime is 30161701. The reversal of 30161700 is 716103.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30161701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2886 + ... + 8285.

Almost surely, 2^30161700 is an apocalyptic number.

30161700 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30161700 is an abundant number, since it is smaller than the sum of its proper divisors (66811260).

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

30161700 is a wasteful number, since it uses less digits than its factorization.

30161700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11194 (or 11181 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 30161700 is about 5491.9668607886. The cubic root of 30161700 is about 311.2805166769.

Adding to 30161700 its reverse (716103), we get a palindrome (30877803).

It can be divided in two parts, 301 and 61700, that added together give a square (62001 = 249²).

The spelling of 30161700 in words is "thirty million, one hundred sixty-one thousand, seven hundred".