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161054134 = 2691116537
BaseRepresentation
bin10011001100101…
…11110110110110
3102020001101201221
421212113312312
5312212213014
623551540554
73663636403
oct1146276666
9366041657
10161054134
1182a0239a
1245b2a75a
132749c507
14175652aa
15e214b24
hex9997db6

161054134 has 8 divisors (see below), whose sum is σ = 241932888. Its totient is φ = 80409840.

The previous prime is 161054123. The next prime is 161054137. The reversal of 161054134 is 431450161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 161054099 and 161054108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161054137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56887 + ... + 59650.

It is an arithmetic number, because the mean of its divisors is an integer number (30241611).

Almost surely, 2161054134 is an apocalyptic number.

161054134 is a deficient number, since it is larger than the sum of its proper divisors (80878754).

161054134 is a wasteful number, since it uses less digits than its factorization.

161054134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117230.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 161054134 is about 12690.7105396034. The cubic root of 161054134 is about 544.0731478737.

The spelling of 161054134 in words is "one hundred sixty-one million, fifty-four thousand, one hundred thirty-four".

Divisors: 1 2 691 1382 116537 233074 80527067 161054134