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161214254 = 2372178571
BaseRepresentation
bin10011001101111…
…10111100101110
3102020100112101022
421212332330232
5312232324004
623555214142
73665204255
oct1146767456
9366315338
10161214254
1183001723
1245ba7352
1327527366
14175a779c
15e2472be
hex99bef2e

161214254 has 8 divisors (see below), whose sum is σ = 248357208. Its totient is φ = 78428520.

The previous prime is 161214253. The next prime is 161214269. The reversal of 161214254 is 452412161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161214253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089212 + ... + 1089359.

It is an arithmetic number, because the mean of its divisors is an integer number (31044651).

Almost surely, 2161214254 is an apocalyptic number.

161214254 is a deficient number, since it is larger than the sum of its proper divisors (87142954).

161214254 is a wasteful number, since it uses less digits than its factorization.

161214254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178610.

The product of its digits is 1920, while the sum is 26.

The square root of 161214254 is about 12697.0175238124. The cubic root of 161214254 is about 544.2533939720.

The spelling of 161214254 in words is "one hundred sixty-one million, two hundred fourteen thousand, two hundred fifty-four".

Divisors: 1 2 37 74 2178571 4357142 80607127 161214254