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49123190 = 256917109
BaseRepresentation
bin1011101101100…
…0111101110110
310102102201100102
42323120331312
5100033420230
64512514102
71134353204
oct273307566
9112381312
1049123190
1125801a86
121454b932
13a23c29c
14674a074
1544a5045
hex2ed8f76

49123190 has 16 divisors (see below), whose sum is σ = 88562160. Its totient is φ = 19618080.

The previous prime is 49123181. The next prime is 49123199. The reversal of 49123190 is 9132194.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (49123181) and next prime (49123199).

It is a super-2 number, since 2×491231902 = 4826175591552200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49123199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356 + ... + 10464.

It is an arithmetic number, because the mean of its divisors is an integer number (5535135).

Almost surely, 249123190 is an apocalyptic number.

49123190 is a deficient number, since it is larger than the sum of its proper divisors (39438970).

49123190 is a wasteful number, since it uses less digits than its factorization.

49123190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7807.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 49123190 is about 7008.7937621248. The cubic root of 49123190 is about 366.2369741472.

The spelling of 49123190 in words is "forty-nine million, one hundred twenty-three thousand, one hundred ninety".

Divisors: 1 2 5 10 691 1382 3455 6910 7109 14218 35545 71090 4912319 9824638 24561595 49123190