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161468601 = 3717452293
BaseRepresentation
bin10011001111111…
…01000010111001
3102020211110021120
421213331002321
5312313443401
624004455453
74000313640
oct1147750271
9366743246
10161468601
1183165828
12460aa589
13275b6068
1417632357
15e297836
hex99fd0b9

161468601 has 16 divisors (see below), whose sum is σ = 260521344. Its totient is φ = 86840064.

The previous prime is 161468597. The next prime is 161468603. The reversal of 161468601 is 106864161.

It is not a de Polignac number, because 161468601 - 22 = 161468597 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161468603) 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, 225790 + ... + 226503.

It is an arithmetic number, because the mean of its divisors is an integer number (16282584).

Almost surely, 2161468601 is an apocalyptic number.

It is an amenable number.

161468601 is a deficient number, since it is larger than the sum of its proper divisors (99052743).

161468601 is a wasteful number, since it uses less digits than its factorization.

161468601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452320.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 161468601 is about 12707.0295899553. The cubic root of 161468601 is about 544.5394656201.

The spelling of 161468601 in words is "one hundred sixty-one million, four hundred sixty-eight thousand, six hundred one".

Divisors: 1 3 7 17 21 51 119 357 452293 1356879 3166051 7688981 9498153 23066943 53822867 161468601