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49142941 = 239205619
BaseRepresentation
bin1011101101110…
…1110010011101
310102110201102221
42323131302131
5100040033231
64513145341
71134464611
oct273356235
9112421387
1049142941
1125815901
121455b251
13a248283
146753341
1544aad11
hex2eddc9d

49142941 has 4 divisors (see below), whose sum is σ = 49348800. Its totient is φ = 48937084.

The previous prime is 49142939. The next prime is 49142957. The reversal of 49142941 is 14924194.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49142941 - 21 = 49142939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49142897 and 49142906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49142921) 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 3 ways as a sum of consecutive naturals, for example, 102571 + ... + 103048.

It is an arithmetic number, because the mean of its divisors is an integer number (12337200).

Almost surely, 249142941 is an apocalyptic number.

It is an amenable number.

49142941 is a deficient number, since it is larger than the sum of its proper divisors (205859).

49142941 is a wasteful number, since it uses less digits than its factorization.

49142941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205858.

The product of its digits is 10368, while the sum is 34.

The square root of 49142941 is about 7010.2026361582. The cubic root of 49142941 is about 366.2860519672.

The spelling of 49142941 in words is "forty-nine million, one hundred forty-two thousand, nine hundred forty-one".

Divisors: 1 239 205619 49142941