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188057434 = 21747137859
BaseRepresentation
bin10110011010110…
…00011101011010
3111002212022022011
423031120131122
5341120314214
630354420134
74442314255
oct1315303532
9432768264
10188057434
1197176374
1252b9164a
132cc654b6
141ad9409c
151179aac4
hexb35875a

188057434 has 32 divisors (see below), whose sum is σ = 307618560. Its totient is φ = 85882368.

The previous prime is 188057423. The next prime is 188057477. The reversal of 188057434 is 434750881.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218497 + ... + 219355.

It is an arithmetic number, because the mean of its divisors is an integer number (9613080).

Almost surely, 2188057434 is an apocalyptic number.

188057434 is a deficient number, since it is larger than the sum of its proper divisors (119561126).

188057434 is a wasteful number, since it uses less digits than its factorization.

188057434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 188057434 is about 13713.4034433470. The cubic root of 188057434 is about 572.9237624551.

The spelling of 188057434 in words is "one hundred eighty-eight million, fifty-seven thousand, four hundred thirty-four".

Divisors: 1 2 17 34 47 94 137 274 799 859 1598 1718 2329 4658 6439 12878 14603 29206 40373 80746 109463 117683 218926 235366 686341 1372682 2000611 4001222 5531101 11062202 94028717 188057434