| Base | Representation |
|---|---|
| bin | 10111001100010… |
| … | …10100100011100 |
| 3 | 111120002101002220 |
| 4 | 23212022210130 |
| 5 | 344301213030 |
| 6 | 31145545340 |
| 7 | 4551453144 |
| oct | 1346124434 |
| 9 | 446071086 |
| 10 | 194554140 |
| 11 | 9a903450 |
| 12 | 551a5250 |
| 13 | 313cb5c1 |
| 14 | 1bba5924 |
| 15 | 12130a10 |
| hex | b98a91c |
194554140 has 192 divisors, whose sum is σ = 632475648. Its totient is φ = 44236800.
The previous prime is 194554133. The next prime is 194554147. The reversal of 194554140 is 41455491.
194554140 = T63 + T64 + ... + T1052.
It is an interprime number because it is at equal distance from previous prime (194554133) and next prime (194554147).
It is a super-2 number, since 2×1945541402 = 75702626782279200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (194554147) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 756892 + ... + 757148.
It is an arithmetic number, because the mean of its divisors is an integer number (3294144).
Almost surely, 2194554140 is an apocalyptic number.
194554140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 194554140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316237824).
194554140 is an abundant number, since it is smaller than the sum of its proper divisors (437921508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
194554140 is a wasteful number, since it uses less digits than its factorization.
194554140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 348 (or 346 counting only the distinct ones).
The product of its (nonzero) digits is 14400, while the sum is 33.
The square root of 194554140 is about 13948.2665589671. The cubic root of 194554140 is about 579.4466978598.
The spelling of 194554140 in words is "one hundred ninety-four million, five hundred fifty-four thousand, one hundred forty".
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