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193148461 = 11101173851
BaseRepresentation
bin10111000001100…
…11011000101101
3111110102221212201
423200303120231
5343421222321
631055501501
74533510022
oct1340633055
9443387781
10193148461
119a033330
1254827891
133102883c
141b91b549
1511e54291
hexb83362d

193148461 has 8 divisors (see below), whose sum is σ = 212794848. Its totient is φ = 173850000.

The previous prime is 193148419. The next prime is 193148513. The reversal of 193148461 is 164841391.

193148461 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 193148461 - 211 = 193146413 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 193148461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193148401) 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, 85815 + ... + 88036.

It is an arithmetic number, because the mean of its divisors is an integer number (26599356).

Almost surely, 2193148461 is an apocalyptic number.

193148461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

193148461 is a deficient number, since it is larger than the sum of its proper divisors (19646387).

193148461 is a wasteful number, since it uses less digits than its factorization.

193148461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173963.

The product of its digits is 20736, while the sum is 37.

The square root of 193148461 is about 13897.7861906132. The cubic root of 193148461 is about 578.0477973987.

The spelling of 193148461 in words is "one hundred ninety-three million, one hundred forty-eight thousand, four hundred sixty-one".

Divisors: 1 11 101 1111 173851 1912361 17558951 193148461