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194124072 = 23312763689
BaseRepresentation
bin10111001001000…
…01100100101000
3111112021112011110
423210201210220
5344143432242
631132430320
74545012252
oct1344414450
9445245143
10194124072
119a63a31a
12550183a0
13312aa91c
141bad2cd2
151209839c
hexb921928

194124072 has 32 divisors (see below), whose sum is σ = 489139200. Its totient is φ = 64197504.

The previous prime is 194124067. The next prime is 194124097. The reversal of 194124072 is 270421491.

It is a super-2 number, since 2×1941240722 = 75368310659722368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28797 + ... + 34892.

It is an arithmetic number, because the mean of its divisors is an integer number (15285600).

Almost surely, 2194124072 is an apocalyptic number.

194124072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

194124072 is an abundant number, since it is smaller than the sum of its proper divisors (295015128).

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

194124072 is a wasteful number, since it uses less digits than its factorization.

194124072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63825 (or 63821 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 194124072 is about 13932.8414905216. The cubic root of 194124072 is about 579.0194211973.

The spelling of 194124072 in words is "one hundred ninety-four million, one hundred twenty-four thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 127 254 381 508 762 1016 1524 3048 63689 127378 191067 254756 382134 509512 764268 1528536 8088503 16177006 24265509 32354012 48531018 64708024 97062036 194124072