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196169407 = 7127220663
BaseRepresentation
bin10111011000101…
…00111010111111
3111200010102211121
423230110322333
5400204410112
631244331411
74601261320
oct1354247277
9450112747
10196169407
11a0806a85
1255843b67
1331845895
141c0a6447
151234e407
hexbb14ebf

196169407 has 8 divisors (see below), whose sum is σ = 225959936. Its totient is φ = 166820472.

The previous prime is 196169387. The next prime is 196169419. The reversal of 196169407 is 704961691.

It is a happy number.

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

It is not a de Polignac number, because 196169407 - 219 = 195645119 is a prime.

It is a super-3 number, since 3×1961694073 (a number of 26 digits) contains 333 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 (196160407) 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, 109443 + ... + 111220.

It is an arithmetic number, because the mean of its divisors is an integer number (28244992).

Almost surely, 2196169407 is an apocalyptic number.

196169407 is a deficient number, since it is larger than the sum of its proper divisors (29790529).

196169407 is a wasteful number, since it uses less digits than its factorization.

196169407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220797.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 196169407 is about 14006.0489432245. The cubic root of 196169407 is about 581.0458804294.

The spelling of 196169407 in words is "one hundred ninety-six million, one hundred sixty-nine thousand, four hundred seven".

Divisors: 1 7 127 889 220663 1544641 28024201 196169407