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195222260 = 22513771249
BaseRepresentation
bin10111010001011…
…01101011110100
3111121100022121002
423220231223310
5344434103020
631212142432
74560235052
oct1350555364
9447308532
10195222260
11a021a412
1255467a18
13315a373c
141bcdb1d2
1512213975
hexba2daf4

195222260 has 24 divisors (see below), whose sum is σ = 412965000. Its totient is φ = 77517824.

The previous prime is 195222259. The next prime is 195222263. The reversal of 195222260 is 62222591.

It can be written as a sum of positive squares in 4 ways, for example, as 69288976 + 125933284 = 8324^2 + 11222^2 .

It is a super-2 number, since 2×1952222602 = 76223461599015200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195222263) 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, 32885 + ... + 38364.

It is an arithmetic number, because the mean of its divisors is an integer number (17206875).

Almost surely, 2195222260 is an apocalyptic number.

195222260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

195222260 is an abundant number, since it is smaller than the sum of its proper divisors (217742740).

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

195222260 is a wasteful number, since it uses less digits than its factorization.

195222260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71395 (or 71393 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 195222260 is about 13972.1959619811. The cubic root of 195222260 is about 580.1092342814.

The spelling of 195222260 in words is "one hundred ninety-five million, two hundred twenty-two thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 137 274 548 685 1370 2740 71249 142498 284996 356245 712490 1424980 9761113 19522226 39044452 48805565 97611130 195222260