Search a number
-
+
164248051 = 1161244781
BaseRepresentation
bin10011100101000…
…11100111110011
3102110001122222011
421302203213303
5314021414201
624144223351
74033041202
oct1162434763
9373048864
10164248051
1184793aa0
124700ab57
132804a1c6
1417b57239
15e646151
hex9ca39f3

164248051 has 8 divisors (see below), whose sum is σ = 182117808. Its totient is φ = 146868000.

The previous prime is 164248043. The next prime is 164248057. The reversal of 164248051 is 150842461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164248051 - 23 = 164248043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164248057) 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, 121720 + ... + 123061.

It is an arithmetic number, because the mean of its divisors is an integer number (22764726).

Almost surely, 2164248051 is an apocalyptic number.

164248051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

164248051 is a deficient number, since it is larger than the sum of its proper divisors (17869757).

164248051 is a wasteful number, since it uses less digits than its factorization.

164248051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244853.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 164248051 is about 12815.9295800188. The cubic root of 164248051 is about 547.6461954689.

The spelling of 164248051 in words is "one hundred sixty-four million, two hundred forty-eight thousand, fifty-one".

Divisors: 1 11 61 671 244781 2692591 14931641 164248051