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53900193 = 317966731
BaseRepresentation
bin1100110110011…
…1001110100001
310202102102011110
43031213032201
5102244301233
65203133533
71223100264
oct315471641
9122372143
1053900193
1128475016
12160742a9
13b222709
147230cdb
154aea663
hex33673a1

53900193 has 4 divisors (see below), whose sum is σ = 71866928. Its totient is φ = 35933460.

The previous prime is 53900177. The next prime is 53900213. The reversal of 53900193 is 39100935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53900193 - 24 = 53900177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53900193.

It is not an unprimeable number, because it can be changed into a prime (53900153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8983363 + ... + 8983368.

It is an arithmetic number, because the mean of its divisors is an integer number (17966732).

Almost surely, 253900193 is an apocalyptic number.

It is an amenable number.

53900193 is a deficient number, since it is larger than the sum of its proper divisors (17966735).

53900193 is a wasteful number, since it uses less digits than its factorization.

53900193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17966734.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 53900193 is about 7341.6750813421. The cubic root of 53900193 is about 377.7433029446.

The spelling of 53900193 in words is "fifty-three million, nine hundred thousand, one hundred ninety-three".

Divisors: 1 3 17966731 53900193