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4470138 = 232318011
BaseRepresentation
bin10001000011010101111010
322102002212200
4101003111322
52121021023
6235451030
752665321
oct21032572
98362780
104470138
112583532
1215b6a76
13c0686a
148450b8
155d4743
hex44357a

4470138 has 24 divisors (see below), whose sum is σ = 9998976. Its totient is φ = 1441800.

The previous prime is 4470121. The next prime is 4470143. The reversal of 4470138 is 8310744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3448 + ... + 4563.

It is an arithmetic number, because the mean of its divisors is an integer number (416624).

Almost surely, 24470138 is an apocalyptic number.

4470138 is an abundant number, since it is smaller than the sum of its proper divisors (5528838).

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

4470138 is a wasteful number, since it uses less digits than its factorization.

4470138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8050 (or 8047 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4470138 is about 2114.2700868148. The cubic root of 4470138 is about 164.7303584924.

Subtracting 4470138 from its reverse (8310744), we obtain a triangular number (3840606 = T2771).

The spelling of 4470138 in words is "four million, four hundred seventy thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 8011 16022 24033 48066 72099 144198 248341 496682 745023 1490046 2235069 4470138