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195031936 = 2711138517
BaseRepresentation
bin10111001111111…
…11001110000000
3111120222122112001
423213333032000
5344412010221
631204113344
74555513141
oct1347771600
9446878461
10195031936
11a00aa420
1255395854
1331537c18
141bc8bac8
15121c7391
hexb9ff380

195031936 has 32 divisors (see below), whose sum is σ = 423865080. Its totient is φ = 88650240.

The previous prime is 195031933. The next prime is 195031937. The reversal of 195031936 is 639130591.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 195031895 and 195031904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195031933) 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, 67851 + ... + 70666.

Almost surely, 2195031936 is an apocalyptic number.

195031936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

195031936 is an abundant number, since it is smaller than the sum of its proper divisors (228833144).

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

195031936 is a wasteful number, since it uses less digits than its factorization.

195031936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138542 (or 138530 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 195031936 is about 13965.3834891850. The cubic root of 195031936 is about 579.9206550199.

The spelling of 195031936 in words is "one hundred ninety-five million, thirty-one thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 11 16 22 32 44 64 88 128 176 352 704 1408 138517 277034 554068 1108136 1523687 2216272 3047374 4432544 6094748 8865088 12189496 17730176 24378992 48757984 97515968 195031936