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20379370 = 2511185267
BaseRepresentation
bin100110110111…
…1011011101010
31102100101020111
41031233123222
520204114440
62004444534
7335136034
oct115573352
942311214
1020379370
111055a360
1269a974a
1342b6ccb
1429c6c54
151bc84ea
hex136f6ea

20379370 has 16 divisors (see below), whose sum is σ = 40017888. Its totient is φ = 7410640.

The previous prime is 20379361. The next prime is 20379371. The reversal of 20379370 is 7397302.

It is not an unprimeable number, because it can be changed into a prime (20379371) 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, 92524 + ... + 92743.

It is an arithmetic number, because the mean of its divisors is an integer number (2501118).

Almost surely, 220379370 is an apocalyptic number.

20379370 is a deficient number, since it is larger than the sum of its proper divisors (19638518).

20379370 is a wasteful number, since it uses less digits than its factorization.

20379370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185285.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 20379370 is about 4514.3515591943. The cubic root of 20379370 is about 273.1473038495.

The spelling of 20379370 in words is "twenty million, three hundred seventy-nine thousand, three hundred seventy".

Divisors: 1 2 5 10 11 22 55 110 185267 370534 926335 1852670 2037937 4075874 10189685 20379370