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163042469 = 23531311021
BaseRepresentation
bin10011011011111…
…01010010100101
3102100210102012222
421231331102211
5313214324334
624102322125
74016560322
oct1155752245
9370712188
10163042469
1184040247
1246729345
1327a17545
1417921b49
15e4a8d2e
hex9b7d4a5

163042469 has 16 divisors (see below), whose sum is σ = 174835584. Its totient is φ = 151694400.

The previous prime is 163042463. The next prime is 163042471. The reversal of 163042469 is 964240361.

It is a cyclic number.

It is not a de Polignac number, because 163042469 - 220 = 161993893 is a prime.

It is a super-2 number, since 2×1630424692 = 53165693395231922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163042463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159179 + ... + 160199.

It is an arithmetic number, because the mean of its divisors is an integer number (10927224).

Almost surely, 2163042469 is an apocalyptic number.

It is an amenable number.

163042469 is a deficient number, since it is larger than the sum of its proper divisors (11793115).

163042469 is a wasteful number, since it uses less digits than its factorization.

163042469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 163042469 is about 12768.8084408844. The cubic root of 163042469 is about 546.3029945775.

The spelling of 163042469 in words is "one hundred sixty-three million, forty-two thousand, four hundred sixty-nine".

Divisors: 1 23 53 131 1021 1219 3013 6943 23483 54113 133751 159689 1244599 3076273 7088803 163042469