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194515053 = 365998389
BaseRepresentation
bin10111001100000…
…01000001101101
3111120000101111020
423212001001231
5344243440203
631145044353
74551231165
oct1346010155
9446011436
10194515053
119a887047
12551866b9
13313b6885
141bb955a5
1512124153
hexb98106d

194515053 has 8 divisors (see below), whose sum is σ = 259749600. Its totient is φ = 129478608.

The previous prime is 194515043. The next prime is 194515099. The reversal of 194515053 is 350515491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 194515053 - 28 = 194514797 is a prime.

It is a super-2 number, since 2×1945150532 = 75672211687185618, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194515033) 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, 47218 + ... + 51171.

It is an arithmetic number, because the mean of its divisors is an integer number (32468700).

Almost surely, 2194515053 is an apocalyptic number.

It is an amenable number.

194515053 is a deficient number, since it is larger than the sum of its proper divisors (65234547).

194515053 is an equidigital number, since it uses as much as digits as its factorization.

194515053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99051.

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 194515053 is about 13946.8653467365. The cubic root of 194515053 is about 579.4078905814.

The spelling of 194515053 in words is "one hundred ninety-four million, five hundred fifteen thousand, fifty-three".

Divisors: 1 3 659 1977 98389 295167 64838351 194515053