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199830037 = 1131375791
BaseRepresentation
bin10111110100100…
…10101000010101
3111221000102021111
423322102220111
5402124030122
631455015021
74644345601
oct1372225025
9457012244
10199830037
11a28872a0
1256b0a471
1332527b34
141c77a501
1512823d77
hexbe92a15

199830037 has 8 divisors (see below), whose sum is σ = 218103552. Its totient is φ = 181574400.

The previous prime is 199829983. The next prime is 199830047. The reversal of 199830037 is 730038991.

199830037 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 199830037 - 27 = 199829909 is a prime.

It is a pancake number, because a pancake can be divided into 199830037 parts by 19991 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199830047) 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, 31612 + ... + 37402.

It is an arithmetic number, because the mean of its divisors is an integer number (27262944).

Almost surely, 2199830037 is an apocalyptic number.

It is an amenable number.

199830037 is a deficient number, since it is larger than the sum of its proper divisors (18273515).

199830037 is a wasteful number, since it uses less digits than its factorization.

199830037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8939.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 199830037 is about 14136.1252470399. The cubic root of 199830037 is about 584.6378424185.

The spelling of 199830037 in words is "one hundred ninety-nine million, eight hundred thirty thousand, thirty-seven".