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190053738 = 23272365581
BaseRepresentation
bin10110101001111…
…11110101101010
3111020121201201100
423110333311222
5342123204423
630505302230
74465300350
oct1324776552
9436551640
10190053738
119830a206
1253794976
13304b4044
141b3537d0
1511a42343
hexb53fd6a

190053738 has 48 divisors (see below), whose sum is σ = 491078016. Its totient is φ = 51939360.

The previous prime is 190053671. The next prime is 190053767. The reversal of 190053738 is 837350091.

190053738 is a `hidden beast` number, since 1 + 90 + 0 + 537 + 38 = 666.

It is a super-2 number, since 2×1900537382 = 72240846655545288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29893 + ... + 35688.

It is an arithmetic number, because the mean of its divisors is an integer number (10230792).

Almost surely, 2190053738 is an apocalyptic number.

190053738 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

190053738 is an abundant number, since it is smaller than the sum of its proper divisors (301024278).

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

190053738 is a wasteful number, since it uses less digits than its factorization.

190053738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65619 (or 65616 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 190053738 is about 13785.9978964165. The cubic root of 190053738 is about 574.9439017735.

The spelling of 190053738 in words is "one hundred ninety million, fifty-three thousand, seven hundred thirty-eight".

Divisors: 1 2 3 6 7 9 14 18 21 23 42 46 63 69 126 138 161 207 322 414 483 966 1449 2898 65581 131162 196743 393486 459067 590229 918134 1180458 1377201 1508363 2754402 3016726 4131603 4525089 8263206 9050178 10558541 13575267 21117082 27150534 31675623 63351246 95026869 190053738