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47193090 = 2357224729
BaseRepresentation
bin1011010000000…
…1110000000010
310021210122202020
42310001300002
544040134330
64403302310
71112064120
oct264016002
9107718666
1047193090
112470395a
121397a996
139a14909
1463a6910
154223210
hex2d01c02

47193090 has 32 divisors (see below), whose sum is σ = 129444480. Its totient is φ = 10786944.

The previous prime is 47193089. The next prime is 47193109. The reversal of 47193090 is 9039174.

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, 112155 + ... + 112574.

It is an arithmetic number, because the mean of its divisors is an integer number (4045140).

Almost surely, 247193090 is an apocalyptic number.

47193090 is an abundant number, since it is smaller than the sum of its proper divisors (82251390).

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

47193090 is a wasteful number, since it uses less digits than its factorization.

47193090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224746.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 47193090 is about 6869.7227018272. The cubic root of 47193090 is about 361.3761371916.

The spelling of 47193090 in words is "forty-seven million, one hundred ninety-three thousand, ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 224729 449458 674187 1123645 1348374 1573103 2247290 3146206 3370935 4719309 6741870 7865515 9438618 15731030 23596545 47193090