Search a number
-
+
194472701 = 1013191977
BaseRepresentation
bin10111001011101…
…10101011111101
3111112221020101122
423211312223331
5344241111301
631144120325
74550663543
oct1345665375
9445836348
10194472701
119a858245
12551660a5
13313a0507
141bb83d93
151211681b
hexb976afd

194472701 has 4 divisors (see below), whose sum is σ = 194665692. Its totient is φ = 194279712.

The previous prime is 194472689. The next prime is 194472709. The reversal of 194472701 is 107274491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17556100 + 176916601 = 4190^2 + 13301^2 .

It is a cyclic number.

It is not a de Polignac number, because 194472701 - 218 = 194210557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194472709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94976 + ... + 97001.

It is an arithmetic number, because the mean of its divisors is an integer number (48666423).

Almost surely, 2194472701 is an apocalyptic number.

It is an amenable number.

194472701 is a deficient number, since it is larger than the sum of its proper divisors (192991).

194472701 is a wasteful number, since it uses less digits than its factorization.

194472701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192990.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 194472701 is about 13945.3469300695. The cubic root of 194472701 is about 579.3658357999.

The spelling of 194472701 in words is "one hundred ninety-four million, four hundred seventy-two thousand, seven hundred one".

Divisors: 1 1013 191977 194472701