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189704054 = 2176179043
BaseRepresentation
bin10110100111010…
…10011101110110
3111012221222001002
423103222131312
5342031012204
630454003302
74462313021
oct1323523566
9435858032
10189704054
11980a0511
1253646532
13303c0b27
141b2a21b8
15119c391e
hexb4ea776

189704054 has 16 divisors (see below), whose sum is σ = 301816368. Its totient is φ = 89117952.

The previous prime is 189704041. The next prime is 189704059. The reversal of 189704054 is 450407981.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189703999 and 189704017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189704059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16457 + ... + 25499.

It is an arithmetic number, because the mean of its divisors is an integer number (18863523).

Almost surely, 2189704054 is an apocalyptic number.

189704054 is a deficient number, since it is larger than the sum of its proper divisors (112112314).

189704054 is a wasteful number, since it uses less digits than its factorization.

189704054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9679.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 189704054 is about 13773.3094788435. The cubic root of 189704054 is about 574.5910680324.

The spelling of 189704054 in words is "one hundred eighty-nine million, seven hundred four thousand, fifty-four".

Divisors: 1 2 17 34 617 1234 9043 10489 18086 20978 153731 307462 5579531 11159062 94852027 189704054