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164268475379 = 2571187538481
BaseRepresentation
bin1001100011111100101…
…0100000001111110011
3120201000011010011102122
42120333022200033303
510142410212203004
6203244111304455
714603504000561
oct2307712401763
9521004104378
10164268475379
11637362a9968
1227a0521b12b
131264b69c1b8
147d44792a31
154416595cbe
hex263f2a03f3

164268475379 has 8 divisors (see below), whose sum is σ = 165046886928. Its totient is φ = 163491143680.

The previous prime is 164268475367. The next prime is 164268475391. The reversal of 164268475379 is 973574862461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (164268475367) and next prime (164268475391).

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 164268475379 - 220 = 164267426803 is a prime.

It is a super-2 number, since 2×1642684753792 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164268475879) 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, 35819 + ... + 574299.

It is an arithmetic number, because the mean of its divisors is an integer number (20630860866).

Almost surely, 2164268475379 is an apocalyptic number.

164268475379 is a deficient number, since it is larger than the sum of its proper divisors (778411549).

164268475379 is a wasteful number, since it uses less digits than its factorization.

164268475379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539925.

The product of its digits is 60963840, while the sum is 62.

The spelling of 164268475379 in words is "one hundred sixty-four billion, two hundred sixty-eight million, four hundred seventy-five thousand, three hundred seventy-nine".

Divisors: 1 257 1187 305059 538481 138389617 639176947 164268475379