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201006939 = 3722074337
BaseRepresentation
bin10111111101100…
…01111101011011
3112000020012200110
423332301331123
5402424210224
631540135403
74660350030
oct1376617533
9460205613
10201006939
11a3510541
1257397563
133284a723
141c9a5387
15129a7929
hexbfb1f5b

201006939 has 16 divisors (see below), whose sum is σ = 306505728. Its totient is φ = 114782592.

The previous prime is 201006937. The next prime is 201006941. The reversal of 201006939 is 939600102.

It is an interprime number because it is at equal distance from previous prime (201006937) and next prime (201006941).

It is not a de Polignac number, because 201006939 - 21 = 201006937 is a prime.

It is a super-2 number, since 2×2010069392 = 80807579052299442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201006937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44179 + ... + 48515.

It is an arithmetic number, because the mean of its divisors is an integer number (19156608).

Almost surely, 2201006939 is an apocalyptic number.

201006939 is a deficient number, since it is larger than the sum of its proper divisors (105498789).

201006939 is a wasteful number, since it uses less digits than its factorization.

201006939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6554.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 201006939 is about 14177.6915963072. The cubic root of 201006939 is about 585.7833409899.

The spelling of 201006939 in words is "two hundred one million, six thousand, nine hundred thirty-nine".

Divisors: 1 3 7 21 2207 4337 6621 13011 15449 30359 46347 91077 9571759 28715277 67002313 201006939