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49556142 = 23219473083
BaseRepresentation
bin1011110100001…
…0101010101110
310110020201020200
42331002222232
5100141244032
64530054330
71141135356
oct275025256
9113221220
1049556142
1125a78299
121471a3a6
13a36137c
14681db66
15453d47c
hex2f42aae

49556142 has 48 divisors (see below), whose sum is σ = 115464960. Its totient is φ = 15311376.

The previous prime is 49556137. The next prime is 49556153. The reversal of 49556142 is 24165594.

49556142 is a `hidden beast` number, since 4 + 95 + 561 + 4 + 2 = 666.

It is a super-2 number, since 2×495561422 = 4911622419848328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49556097 and 49556106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14533 + ... + 17615.

It is an arithmetic number, because the mean of its divisors is an integer number (2405520).

Almost surely, 249556142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49556142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57732480).

49556142 is an abundant number, since it is smaller than the sum of its proper divisors (65908818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49556142 is a wasteful number, since it uses less digits than its factorization.

49556142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157 (or 3154 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 49556142 is about 7039.6123472816. The cubic root of 49556142 is about 367.3097835554.

The spelling of 49556142 in words is "forty-nine million, five hundred fifty-six thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 19 38 47 57 94 114 141 171 282 342 423 846 893 1786 2679 3083 5358 6166 8037 9249 16074 18498 27747 55494 58577 117154 144901 175731 289802 351462 434703 527193 869406 1054386 1304109 2608218 2753119 5506238 8259357 16518714 24778071 49556142