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161932852232 = 2317283692
BaseRepresentation
bin1001011011001111110…
…0110011110000001000
3120110222101020012210122
42112303330303300020
510123114302232412
6202220235002412
714461563350624
oct2266374636010
9513871205718
10161932852232
11627479676a8
1227472b99408
1312368833778
147ba24d0184
15432b4d9572
hex25b3f33c08

161932852232 has 36 divisors (see below), whose sum is σ = 322573485255. Its totient is φ = 76194589696.

The previous prime is 161932852217. The next prime is 161932852241. The reversal of 161932852232 is 232258239161.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

161932852232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 151378577476 + 10554274756 = 389074^2 + 102734^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=284546.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19344944 + ... + 19353312.

Almost surely, 2161932852232 is an apocalyptic number.

It is an amenable number.

161932852232 is a deficient number, since it is larger than the sum of its proper divisors (160640633023).

161932852232 is an frugal number, since it uses more digits than its factorization.

161932852232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16778 (or 8388 counting only the distinct ones).

The product of its digits is 311040, while the sum is 44.

The spelling of 161932852232 in words is "one hundred sixty-one billion, nine hundred thirty-two million, eight hundred fifty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 17 34 68 136 289 578 1156 2312 8369 16738 33476 66952 142273 284546 569092 1138184 2418641 4837282 9674564 19349128 70040161 140080322 280160644 560321288 1190682737 2381365474 4762730948 9525461896 20241606529 40483213058 80966426116 161932852232