Search a number
-
+
197385748 = 22724129251
BaseRepresentation
bin10111100001111…
…01111000010100
3111202102020100021
423300331320110
5401012320443
631330354524
74614515440
oct1360757024
9452366307
10197385748
11a146791a
125612ba44
1331b80401
141c301820
15124de9ed
hexbc3de14

197385748 has 24 divisors (see below), whose sum is σ = 396423104. Its totient is φ = 84240000.

The previous prime is 197385743. The next prime is 197385757. The reversal of 197385748 is 847583791.

It is a super-2 number, since 2×1973857482 = 77922267027039008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197385695 and 197385704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197385743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7878 + ... + 21373.

Almost surely, 2197385748 is an apocalyptic number.

It is an amenable number.

197385748 is an abundant number, since it is smaller than the sum of its proper divisors (199037356).

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

197385748 is a wasteful number, since it uses less digits than its factorization.

197385748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29503 (or 29501 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 197385748 is about 14049.4038307681. The cubic root of 197385748 is about 582.2443245424.

The spelling of 197385748 in words is "one hundred ninety-seven million, three hundred eighty-five thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 14 28 241 482 964 1687 3374 6748 29251 58502 117004 204757 409514 819028 7049491 14098982 28197964 49346437 98692874 197385748