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49878343 = 1392811277
BaseRepresentation
bin1011111001000…
…1010101000111
310110212002020001
42332101111013
5100232101333
64541022131
71143646624
oct276212507
9113762201
1049878343
1126178379
1214854947
13a444c18
1468a534b
1545a3b7d
hex2f91547

49878343 has 8 divisors (see below), whose sum is σ = 50455440. Its totient is φ = 49304640.

The previous prime is 49878319. The next prime is 49878373. The reversal of 49878343 is 34387894.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49878343 - 225 = 16323911 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49878293 and 49878302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49878373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38421 + ... + 39697.

It is an arithmetic number, because the mean of its divisors is an integer number (6306930).

Almost surely, 249878343 is an apocalyptic number.

49878343 is a deficient number, since it is larger than the sum of its proper divisors (577097).

49878343 is a wasteful number, since it uses less digits than its factorization.

49878343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697.

The product of its digits is 580608, while the sum is 46.

The square root of 49878343 is about 7062.4601237812. The cubic root of 49878343 is about 368.1041150549.

The spelling of 49878343 in words is "forty-nine million, eight hundred seventy-eight thousand, three hundred forty-three".

Divisors: 1 139 281 1277 39059 177503 358837 49878343