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61194198 = 2313784541
BaseRepresentation
bin1110100101101…
…1111111010110
311021010222122210
43221123333112
5111131203243
610023334250
71342066512
oct351337726
9137128583
1061194198
11315a711a
12185b1386
13c8a76b0
1481ad142
15558b933
hex3a5bfd6

61194198 has 16 divisors (see below), whose sum is σ = 131803056. Its totient is φ = 18828960.

The previous prime is 61194197. The next prime is 61194209. The reversal of 61194198 is 89149116.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61194197) 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, 392193 + ... + 392348.

It is an arithmetic number, because the mean of its divisors is an integer number (8237691).

Almost surely, 261194198 is an apocalyptic number.

61194198 is an abundant number, since it is smaller than the sum of its proper divisors (70608858).

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

61194198 is a wasteful number, since it uses less digits than its factorization.

61194198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784559.

The product of its digits is 15552, while the sum is 39.

The square root of 61194198 is about 7822.6720498817. The cubic root of 61194198 is about 394.0670134324.

The spelling of 61194198 in words is "sixty-one million, one hundred ninety-four thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 13 26 39 78 784541 1569082 2353623 4707246 10199033 20398066 30597099 61194198