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161410231 = 977092347
BaseRepresentation
bin10011001111011…
…10110010110111
3102020201111012201
421213232302313
5312310111411
624003325331
73666651523
oct1147566267
9366644181
10161410231
1183125994
1246080847
1327595618
1417618d83
15e2853c1
hex99eecb7

161410231 has 8 divisors (see below), whose sum is σ = 163373840. Its totient is φ = 159452928.

The previous prime is 161410213. The next prime is 161410279. The reversal of 161410231 is 132014161.

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

It is a cyclic number.

It is not a de Polignac number, because 161410231 - 27 = 161410103 is a prime.

It is a super-2 number, since 2×1614102312 = 52106525342946722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161410199 and 161410208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161417231) 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, 67600 + ... + 69946.

It is an arithmetic number, because the mean of its divisors is an integer number (20421730).

Almost surely, 2161410231 is an apocalyptic number.

161410231 is a deficient number, since it is larger than the sum of its proper divisors (1963609).

161410231 is an equidigital number, since it uses as much as digits as its factorization.

161410231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 161410231 is about 12704.7326221373. The cubic root of 161410231 is about 544.4738417172.

Adding to 161410231 its reverse (132014161), we get a palindrome (293424392).

The spelling of 161410231 in words is "one hundred sixty-one million, four hundred ten thousand, two hundred thirty-one".

Divisors: 1 97 709 2347 68773 227659 1664023 161410231