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189480753 = 32711713851
BaseRepresentation
bin10110100101100…
…11111100110001
3111012112121201200
423102303330301
5342001341003
630445121413
74460363010
oct1322637461
9435477650
10189480753
1197a58770
1253559269
13303432b7
141b244a77
151197c6a3
hexb4b3f31

189480753 has 48 divisors (see below), whose sum is σ = 346125312. Its totient is φ = 97020000.

The previous prime is 189480719. The next prime is 189480763. The reversal of 189480753 is 357084981.

It is not a de Polignac number, because 189480753 - 210 = 189479729 is a prime.

It is a super-3 number, since 3×1894807533 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 189480699 and 189480708.

It is not an unprimeable number, because it can be changed into a prime (189480713) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47278 + ... + 51128.

It is an arithmetic number, because the mean of its divisors is an integer number (7210944).

Almost surely, 2189480753 is an apocalyptic number.

It is an amenable number.

189480753 is a deficient number, since it is larger than the sum of its proper divisors (156644559).

189480753 is a wasteful number, since it uses less digits than its factorization.

189480753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3946 (or 3943 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 189480753 is about 13765.2007976637. The cubic root of 189480753 is about 574.3655287715.

The spelling of 189480753 in words is "one hundred eighty-nine million, four hundred eighty thousand, seven hundred fifty-three".

Divisors: 1 3 7 9 11 21 33 63 71 77 99 213 231 497 639 693 781 1491 2343 3851 4473 5467 7029 11553 16401 26957 34659 42361 49203 80871 127083 242613 273421 296527 381249 820263 889581 1913947 2460789 2668743 3007631 5741841 9022893 17225523 21053417 27068679 63160251 189480753