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197249074 = 21128131907
BaseRepresentation
bin10111100000111…
…00100000110010
3111202011021212021
423300130200302
5400443432244
631323422054
74613406121
oct1360344062
9452137767
10197249074
11a1384170
125608492a
1331b33139
141c2a7ab8
15124b4284
hexbc1c832

197249074 has 16 divisors (see below), whose sum is σ = 323930016. Its totient is φ = 89336800.

The previous prime is 197249069. The next prime is 197249077. The reversal of 197249074 is 470942791.

It is a self number, because there is not a number n which added to its sum of digits gives 197249074.

It is not an unprimeable number, because it can be changed into a prime (197249077) 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, 9772 + ... + 22135.

It is an arithmetic number, because the mean of its divisors is an integer number (20245626).

Almost surely, 2197249074 is an apocalyptic number.

197249074 is a deficient number, since it is larger than the sum of its proper divisors (126680942).

197249074 is a wasteful number, since it uses less digits than its factorization.

197249074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32201.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 197249074 is about 14044.5389386765. The cubic root of 197249074 is about 582.1099074838.

The spelling of 197249074 in words is "one hundred ninety-seven million, two hundred forty-nine thousand, seventy-four".

Divisors: 1 2 11 22 281 562 3091 6182 31907 63814 350977 701954 8965867 17931734 98624537 197249074