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196215319 = 1391411621
BaseRepresentation
bin10111011001000…
…00001000010111
3111200012202211001
423230200020113
5400212342234
631245324131
74601542216
oct1354401027
9450182731
10196215319
11a0838523
1255866647
1331860751
141c0b907d
151235cd14
hexbb20217

196215319 has 4 divisors (see below), whose sum is σ = 197627080. Its totient is φ = 194803560.

The previous prime is 196215311. The next prime is 196215353. The reversal of 196215319 is 913512691.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 196215319 - 23 = 196215311 is a prime.

It is a super-2 number, since 2×1962153192 = 77000902820543522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196215311) 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, 705672 + ... + 705949.

It is an arithmetic number, because the mean of its divisors is an integer number (49406770).

Almost surely, 2196215319 is an apocalyptic number.

196215319 is a deficient number, since it is larger than the sum of its proper divisors (1411761).

196215319 is a wasteful number, since it uses less digits than its factorization.

196215319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411760.

The product of its digits is 14580, while the sum is 37.

The square root of 196215319 is about 14007.6878534610. The cubic root of 196215319 is about 581.0912067249.

The spelling of 196215319 in words is "one hundred ninety-six million, two hundred fifteen thousand, three hundred nineteen".

Divisors: 1 139 1411621 196215319