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49190197 = 7173531171
BaseRepresentation
bin1011101110100…
…1010100110101
310102120010021011
42323221110311
5100043041242
64514152221
71135052440
oct273512465
9112503234
1049190197
1125848361
1214582671
13a263934
146766657
1544b9d17
hex2ee9535

49190197 has 16 divisors (see below), whose sum is σ = 59743872. Its totient is φ = 39536640.

The previous prime is 49190191. The next prime is 49190203. The reversal of 49190197 is 79109194.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49190191) and next prime (49190203).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-49190197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49190191) 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, 41422 + ... + 42592.

It is an arithmetic number, because the mean of its divisors is an integer number (3733992).

Almost surely, 249190197 is an apocalyptic number.

It is an amenable number.

49190197 is a deficient number, since it is larger than the sum of its proper divisors (10553675).

49190197 is a wasteful number, since it uses less digits than its factorization.

49190197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 49190197 is about 7013.5723422518. The cubic root of 49190197 is about 366.4034216109.

The spelling of 49190197 in words is "forty-nine million, one hundred ninety thousand, one hundred ninety-seven".

Divisors: 1 7 17 119 353 1171 2471 6001 8197 19907 42007 139349 413363 2893541 7027171 49190197