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161450101 = 676133931
BaseRepresentation
bin10011001111110…
…00100001110101
3102020210111220101
421213320201311
5312312400401
624004234101
74000206001
oct1147704165
9366714811
10161450101
118315293a
124609b931
13275aa807
1417629701
15e292101
hex99f8875

161450101 has 8 divisors (see below), whose sum is σ = 164168864. Its totient is φ = 158740560.

The previous prime is 161450083. The next prime is 161450111. The reversal of 161450101 is 101054161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-161450101 is a prime.

It is a super-2 number, since 2×1614501012 = 52132270225820402, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161450111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39106 + ... + 43036.

It is an arithmetic number, because the mean of its divisors is an integer number (20521108).

Almost surely, 2161450101 is an apocalyptic number.

It is an amenable number.

161450101 is a deficient number, since it is larger than the sum of its proper divisors (2718763).

161450101 is an equidigital number, since it uses as much as digits as its factorization.

161450101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4611.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 161450101 is about 12706.3016255715. The cubic root of 161450101 is about 544.5186682539.

It can be divided in two parts, 1614 and 50101, that added together give a palindrome (51715).

The spelling of 161450101 in words is "one hundred sixty-one million, four hundred fifty thousand, one hundred one".

Divisors: 1 67 613 3931 41071 263377 2409703 161450101