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194061212 = 221923671657
BaseRepresentation
bin10111001000100…
…10001110011100
3111112011022221022
423210102032130
5344134424322
631131223312
74544331062
oct1344221634
9445138838
10194061212
119a5a7074
1254ba7b38
1331288127
141bab8032
1512084942
hexb91239c

194061212 has 48 divisors (see below), whose sum is σ = 378819840. Its totient is φ = 86562432.

The previous prime is 194061211. The next prime is 194061223. The reversal of 194061212 is 212160491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194061211) 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 15 ways as a sum of consecutive naturals, for example, 116288 + ... + 117944.

It is an arithmetic number, because the mean of its divisors is an integer number (7892080).

Almost surely, 2194061212 is an apocalyptic number.

It is an amenable number.

194061212 is a deficient number, since it is larger than the sum of its proper divisors (184758628).

194061212 is a wasteful number, since it uses less digits than its factorization.

194061212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 194061212 is about 13930.5854866190. The cubic root of 194061212 is about 578.9569163436.

The spelling of 194061212 in words is "one hundred ninety-four million, sixty-one thousand, two hundred twelve".

Divisors: 1 2 4 19 23 38 46 67 76 92 134 268 437 874 1273 1541 1657 1748 2546 3082 3314 5092 6164 6628 29279 31483 38111 58558 62966 76222 111019 117116 125932 152444 222038 444076 724109 1448218 2109361 2553437 2896436 4218722 5106874 8437444 10213748 48515303 97030606 194061212