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195214290 = 2356507143
BaseRepresentation
bin10111010001010…
…11101111010010
3111121022220122220
423220223233102
5344433324130
631212041510
74560202605
oct1350535722
9447286586
10195214290
11a0214427
1255463296
133159cc1b
141bcd833c
1512211410
hexba2bbd2

195214290 has 16 divisors (see below), whose sum is σ = 468514368. Its totient is φ = 52057136.

The previous prime is 195214277. The next prime is 195214307. The reversal of 195214290 is 92412591.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3253542 + ... + 3253601.

It is an arithmetic number, because the mean of its divisors is an integer number (29282148).

Almost surely, 2195214290 is an apocalyptic number.

195214290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195214290 is an abundant number, since it is smaller than the sum of its proper divisors (273300078).

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

195214290 is a wasteful number, since it uses less digits than its factorization.

195214290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507153.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 195214290 is about 13971.9107497865. The cubic root of 195214290 is about 580.1013398034.

The spelling of 195214290 in words is "one hundred ninety-five million, two hundred fourteen thousand, two hundred ninety".

Divisors: 1 2 3 5 6 10 15 30 6507143 13014286 19521429 32535715 39042858 65071430 97607145 195214290