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18953048 = 237929989
BaseRepresentation
bin100100001001…
…1001101011000
31022122220200202
41020103031120
514322444143
61514121332
7320045462
oct110231530
938586622
1018953048
11a775784
126420248
133c07a2a
142735132
1519e5ab8
hex1213358

18953048 has 16 divisors (see below), whose sum is σ = 35988000. Its totient is φ = 9356256.

The previous prime is 18953047. The next prime is 18953083. The reversal of 18953048 is 84035981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18953041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14363 + ... + 15626.

It is an arithmetic number, because the mean of its divisors is an integer number (2249250).

Almost surely, 218953048 is an apocalyptic number.

It is an amenable number.

18953048 is a deficient number, since it is larger than the sum of its proper divisors (17034952).

18953048 is a wasteful number, since it uses less digits than its factorization.

18953048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30074 (or 30070 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 18953048 is about 4353.5098483867. The cubic root of 18953048 is about 266.6201821752.

The spelling of 18953048 in words is "eighteen million, nine hundred fifty-three thousand, forty-eight".

Divisors: 1 2 4 8 79 158 316 632 29989 59978 119956 239912 2369131 4738262 9476524 18953048