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49180420 = 22522311027
BaseRepresentation
bin1011101110011…
…0111100000100
310102112121212001
42323212330010
5100042233140
64514035044
71135012102
oct273467404
9112477761
1049180420
1125840a83
1214578a84
13a25c353
146762c72
1544b6e9a
hex2ee6f04

49180420 has 24 divisors (see below), whose sum is σ = 103751424. Its totient is φ = 19582176.

The previous prime is 49180409. The next prime is 49180427. The reversal of 49180420 is 2408194.

It is a super-2 number, since 2×491804202 = 4837427422752800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49180427) 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, 1054 + ... + 9973.

It is an arithmetic number, because the mean of its divisors is an integer number (4322976).

Almost surely, 249180420 is an apocalyptic number.

It is an amenable number.

49180420 is an abundant number, since it is smaller than the sum of its proper divisors (54571004).

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

49180420 is a wasteful number, since it uses less digits than its factorization.

49180420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11259 (or 11257 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 49180420 is about 7012.8753019001. The cubic root of 49180420 is about 366.3791446626.

The spelling of 49180420 in words is "forty-nine million, one hundred eighty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 223 446 892 1115 2230 4460 11027 22054 44108 55135 110270 220540 2459021 4918042 9836084 12295105 24590210 49180420