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164155037 = 433817559
BaseRepresentation
bin10011100100011…
…00111010011101
3102102212221101012
421302030322131
5314010430122
624142225005
74032203054
oct1162147235
9372787335
10164155037
1184730122
1246b85165
1328016a77
1417b3139b
15e6287e2
hex9c8ce9d

164155037 has 4 divisors (see below), whose sum is σ = 167972640. Its totient is φ = 160337436.

The previous prime is 164155031. The next prime is 164155039. The reversal of 164155037 is 730551461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164155037 - 218 = 163892893 is a prime.

It is a super-4 number, since 4×1641550374 (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164154994 and 164155012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164155031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1908737 + ... + 1908822.

It is an arithmetic number, because the mean of its divisors is an integer number (41993160).

Almost surely, 2164155037 is an apocalyptic number.

It is an amenable number.

164155037 is a deficient number, since it is larger than the sum of its proper divisors (3817603).

164155037 is an equidigital number, since it uses as much as digits as its factorization.

164155037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3817602.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 164155037 is about 12812.3002228327. The cubic root of 164155037 is about 547.5427982362.

The spelling of 164155037 in words is "one hundred sixty-four million, one hundred fifty-five thousand, thirty-seven".

Divisors: 1 43 3817559 164155037