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196872237 = 3247465419
BaseRepresentation
bin10111011110000…
…00100000101101
3111201110010221100
423233000200231
5400344402422
631311353313
74610246352
oct1357004055
9451403840
10196872237
11a1147031
1255b22839
1331a30763
141c20a629
151243c7ac
hexbbc082d

196872237 has 12 divisors (see below), whose sum is σ = 290422080. Its totient is φ = 128455368.

The previous prime is 196872229. The next prime is 196872241. The reversal of 196872237 is 732278691.

It is not a de Polignac number, because 196872237 - 23 = 196872229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 196872192 and 196872201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196872217) 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 11 ways as a sum of consecutive naturals, for example, 232287 + ... + 233132.

It is an arithmetic number, because the mean of its divisors is an integer number (24201840).

Almost surely, 2196872237 is an apocalyptic number.

It is an amenable number.

196872237 is a deficient number, since it is larger than the sum of its proper divisors (93549843).

196872237 is a wasteful number, since it uses less digits than its factorization.

196872237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465472 (or 465469 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 196872237 is about 14031.1167410153. The cubic root of 196872237 is about 581.7389714069.

The spelling of 196872237 in words is "one hundred ninety-six million, eight hundred seventy-two thousand, two hundred thirty-seven".

Divisors: 1 3 9 47 141 423 465419 1396257 4188771 21874693 65624079 196872237