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163461444 = 22313621787
BaseRepresentation
bin10011011111000…
…11100101000100
3102101120200221120
421233203211010
5313321231234
624115313540
74023253656
oct1157434504
9371520846
10163461444
11842a7003
12468ab8b0
1327b33163
14179d06d6
15e53d049
hex9be3944

163461444 has 12 divisors (see below), whose sum is σ = 381410064. Its totient is φ = 54487144.

The previous prime is 163461401. The next prime is 163461457. The reversal of 163461444 is 444164361.

163461444 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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

163461444 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6810882 + ... + 6810905.

It is an arithmetic number, because the mean of its divisors is an integer number (31784172).

Almost surely, 2163461444 is an apocalyptic number.

It is an amenable number.

163461444 is an abundant number, since it is smaller than the sum of its proper divisors (217948620).

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

163461444 is a wasteful number, since it uses less digits than its factorization.

163461444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13621794 (or 13621792 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 163461444 is about 12785.2041047455. The cubic root of 163461444 is about 546.7705445734.

The spelling of 163461444 in words is "one hundred sixty-three million, four hundred sixty-one thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13621787 27243574 40865361 54487148 81730722 163461444