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36890140 = 2257237643
BaseRepresentation
bin1000110010111…
…0011000011100
32120102012202111
42030232120130
533420441030
63354403404
7625363300
oct214563034
976365674
1036890140
1119907121
1210430564
1378481b1
144c83d00
15338a62a
hex232e61c

36890140 has 36 divisors (see below), whose sum is σ = 90119736. Its totient is φ = 12647712.

The previous prime is 36890123. The next prime is 36890143. The reversal of 36890140 is 4109863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36890143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17842 + ... + 19801.

It is an arithmetic number, because the mean of its divisors is an integer number (2503326).

Almost surely, 236890140 is an apocalyptic number.

It is an amenable number.

36890140 is an abundant number, since it is smaller than the sum of its proper divisors (53229596).

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

36890140 is a wasteful number, since it uses less digits than its factorization.

36890140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37666 (or 37657 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 36890140 is about 6073.7253806869. The cubic root of 36890140 is about 332.8920583091.

The spelling of 36890140 in words is "thirty-six million, eight hundred ninety thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 37643 75286 150572 188215 263501 376430 527002 752860 1054004 1317505 1844507 2635010 3689014 5270020 7378028 9222535 18445070 36890140