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196731930 = 2356557731
BaseRepresentation
bin10111011100111…
…10010000011010
3111201012000110210
423232132100122
5400330410210
631304351550
74606123323
oct1356362032
9451160423
10196731930
11a106067a
1255a755b6
13319b1935
141c1b144a
1512410e20
hexbb9e41a

196731930 has 16 divisors (see below), whose sum is σ = 472156704. Its totient is φ = 52461840.

The previous prime is 196731889. The next prime is 196731937. The reversal of 196731930 is 39137691.

It is not an unprimeable number, because it can be changed into a prime (196731937) 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, 3278836 + ... + 3278895.

It is an arithmetic number, because the mean of its divisors is an integer number (29509794).

Almost surely, 2196731930 is an apocalyptic number.

196731930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

196731930 is an abundant number, since it is smaller than the sum of its proper divisors (275424774).

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

196731930 is a wasteful number, since it uses less digits than its factorization.

196731930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6557741.

The product of its (nonzero) digits is 30618, while the sum is 39.

The square root of 196731930 is about 14026.1159983796. The cubic root of 196731930 is about 581.6007405608.

The spelling of 196731930 in words is "one hundred ninety-six million, seven hundred thirty-one thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 6557731 13115462 19673193 32788655 39346386 65577310 98365965 196731930