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196381992 = 23379103577
BaseRepresentation
bin10111011010010…
…00110100101000
3111200112020110010
423231020310220
5400233210432
631253051520
74603135152
oct1355106450
9450466403
10196381992
11a0941774
1255926ba0
13318bb581
141c11dad2
15123923cc
hexbb48d28

196381992 has 32 divisors (see below), whose sum is σ = 497174400. Its totient is φ = 64631424.

The previous prime is 196381987. The next prime is 196382009. The reversal of 196381992 is 299183691.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49893 + ... + 53684.

It is an arithmetic number, because the mean of its divisors is an integer number (15536700).

Almost surely, 2196381992 is an apocalyptic number.

196381992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

196381992 is an abundant number, since it is smaller than the sum of its proper divisors (300792408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196381992 is a wasteful number, since it uses less digits than its factorization.

196381992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103665 (or 103661 counting only the distinct ones).

The product of its digits is 209952, while the sum is 48.

The square root of 196381992 is about 14013.6359307640. The cubic root of 196381992 is about 581.2556940591.

The spelling of 196381992 in words is "one hundred ninety-six million, three hundred eighty-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 24 79 158 237 316 474 632 948 1896 103577 207154 310731 414308 621462 828616 1242924 2485848 8182583 16365166 24547749 32730332 49095498 65460664 98190996 196381992