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197355020 = 22513737187
BaseRepresentation
bin10111100001101…
…10011000001100
3111202100200012012
423300312120030
5401010330040
631330000352
74614330032
oct1360663014
9452320165
10197355020
11a1446825
12561160b8
1331b6c425
141c2d4552
15124d5865
hexbc3660c

197355020 has 24 divisors (see below), whose sum is σ = 414805104. Its totient is φ = 78873536.

The previous prime is 197355013. The next prime is 197355029. The reversal of 197355020 is 20553791.

It is not an unprimeable number, because it can be changed into a prime (197355029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23867 + ... + 31053.

It is an arithmetic number, because the mean of its divisors is an integer number (17283546).

Almost surely, 2197355020 is an apocalyptic number.

197355020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197355020 is an abundant number, since it is smaller than the sum of its proper divisors (217450084).

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

197355020 is a wasteful number, since it uses less digits than its factorization.

197355020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569 (or 8567 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 197355020 is about 14048.3102186704. The cubic root of 197355020 is about 582.2141093719.

The spelling of 197355020 in words is "one hundred ninety-seven million, three hundred fifty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 1373 2746 5492 6865 7187 13730 14374 27460 28748 35935 71870 143740 9867751 19735502 39471004 49338755 98677510 197355020