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193379013 = 3221486557
BaseRepresentation
bin10111000011010…
…11101011000101
3111110212200010200
423201223223011
5344001112023
631104441113
74535460132
oct1341535305
9443780120
10193379013
119a180573
1254919199
13310a9769
141b97b589
1511e9c743
hexb86bac5

193379013 has 6 divisors (see below), whose sum is σ = 279325254. Its totient is φ = 128919336.

The previous prime is 193379003. The next prime is 193379107. The reversal of 193379013 is 310973391.

It can be written as a sum of positive squares in only one way, i.e., 159820164 + 33558849 = 12642^2 + 5793^2 .

It is not a de Polignac number, because 193379013 - 25 = 193378981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (193379003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10743270 + ... + 10743287.

It is an arithmetic number, because the mean of its divisors is an integer number (46554209).

Almost surely, 2193379013 is an apocalyptic number.

It is an amenable number.

193379013 is a deficient number, since it is larger than the sum of its proper divisors (85946241).

193379013 is a wasteful number, since it uses less digits than its factorization.

193379013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21486563 (or 21486560 counting only the distinct ones).

The product of its (nonzero) digits is 15309, while the sum is 36.

The square root of 193379013 is about 13906.0782753442. The cubic root of 193379013 is about 578.2777018708.

The spelling of 193379013 in words is "one hundred ninety-three million, three hundred seventy-nine thousand, thirteen".

Divisors: 1 3 9 21486557 64459671 193379013