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161214412 = 22213118913
BaseRepresentation
bin10011001101111…
…10111111001100
3102020100112121011
421212332333030
5312232330122
623555215004
73665204602
oct1146767714
9366315534
10161214412
1183001857
1245ba7464
1327527458
14175a7872
15e247377
hex99befcc

161214412 has 12 divisors (see below), whose sum is σ = 282272536. Its totient is φ = 80565120.

The previous prime is 161214407. The next prime is 161214421. The reversal of 161214412 is 214412161.

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, 933 + ... + 17980.

Almost surely, 2161214412 is an apocalyptic number.

It is an amenable number.

161214412 is a deficient number, since it is larger than the sum of its proper divisors (121058124).

161214412 is a wasteful number, since it uses less digits than its factorization.

161214412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21048 (or 21046 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 161214412 is about 12697.0237457445. The cubic root of 161214412 is about 544.2535717726.

Adding to 161214412 its reverse (214412161), we get a palindrome (375626573).

The spelling of 161214412 in words is "one hundred sixty-one million, two hundred fourteen thousand, four hundred twelve".

Divisors: 1 2 4 2131 4262 8524 18913 37826 75652 40303603 80607206 161214412