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197005137 = 373191453
BaseRepresentation
bin10111011111000…
…00111101010001
3111201200220020120
423233200331101
5400413131022
631314300453
74611342000
oct1357407521
9451626216
10197005137
11a122796a
1255b87729
1331a790b4
141c242c37
1512466d5c
hexbbe0f51

197005137 has 16 divisors (see below), whose sum is σ = 306326400. Its totient is φ = 112573776.

The previous prime is 197005121. The next prime is 197005139. The reversal of 197005137 is 731500791.

It is not a de Polignac number, because 197005137 - 24 = 197005121 is a prime.

It is a super-2 number, since 2×1970051372 = 77622048008777538, which contains 22 as substring.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 197005098 and 197005107.

It is not an unprimeable number, because it can be changed into a prime (197005139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94698 + ... + 96755.

It is an arithmetic number, because the mean of its divisors is an integer number (19145400).

Almost surely, 2197005137 is an apocalyptic number.

It is an amenable number.

197005137 is a deficient number, since it is larger than the sum of its proper divisors (109321263).

197005137 is an equidigital number, since it uses as much as digits as its factorization.

197005137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191477 (or 191463 counting only the distinct ones).

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 197005137 is about 14035.8518444731. The cubic root of 197005137 is about 581.8698443020.

The spelling of 197005137 in words is "one hundred ninety-seven million, five thousand, one hundred thirty-seven".

Divisors: 1 3 7 21 49 147 343 1029 191453 574359 1340171 4020513 9381197 28143591 65668379 197005137