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164164632 = 23311236091
BaseRepresentation
bin10011100100011…
…11010000011000
3102102220102112120
421302033100120
5314011232012
624142341240
74032243042
oct1162172030
9372812476
10164164632
1184737355
1246b8a820
132801b248
1417b34a92
15e62b58c
hex9c8f418

164164632 has 32 divisors (see below), whose sum is σ = 410844480. Its totient is φ = 54663840.

The previous prime is 164164571. The next prime is 164164667. The reversal of 164164632 is 236461461.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 164164593 and 164164602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23907 + ... + 29997.

It is an arithmetic number, because the mean of its divisors is an integer number (12838890).

Almost surely, 2164164632 is an apocalyptic number.

164164632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164164632 is an abundant number, since it is smaller than the sum of its proper divisors (246679848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164164632 is a wasteful number, since it uses less digits than its factorization.

164164632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223 (or 7219 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 164164632 is about 12812.6746622241. The cubic root of 164164632 is about 547.5534661407.

The spelling of 164164632 in words is "one hundred sixty-four million, one hundred sixty-four thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 24 1123 2246 3369 4492 6091 6738 8984 12182 13476 18273 24364 26952 36546 48728 73092 146184 6840193 13680386 20520579 27360772 41041158 54721544 82082316 164164632