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161069050 = 25217189493
BaseRepresentation
bin10011001100110…
…11011111111010
3102020002011012101
421212123133322
5312213202200
623552134014
73664031032
oct1146333772
9366064171
10161069050
1182a1261a
1245b3730a
13274a623c
141756a8c2
15e21926a
hex999b7fa

161069050 has 24 divisors (see below), whose sum is σ = 317212956. Its totient is φ = 60637440.

The previous prime is 161069039. The next prime is 161069059. The reversal of 161069050 is 50960161.

It can be written as a sum of positive squares in 6 ways, for example, as 81306289 + 79762761 = 9017^2 + 8931^2 .

It is not an unprimeable number, because it can be changed into a prime (161069059) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93897 + ... + 95596.

Almost surely, 2161069050 is an apocalyptic number.

161069050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161069050 is a deficient number, since it is larger than the sum of its proper divisors (156143906).

161069050 is a wasteful number, since it uses less digits than its factorization.

161069050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189522 (or 189517 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 161069050 is about 12691.2981999479. The cubic root of 161069050 is about 544.0899437678.

The spelling of 161069050 in words is "one hundred sixty-one million, sixty-nine thousand, fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 189493 378986 947465 1894930 3221381 4737325 6442762 9474650 16106905 32213810 80534525 161069050