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161413147 = 7172731093
BaseRepresentation
bin10011001111011…
…11100000011011
3102020201122012201
421213233200123
5312310210042
624003351031
73666663160
oct1147574033
9366648181
10161413147
11831280a5
1246082477
1327596a4c
141761a067
15e2861b7
hex99ef81b

161413147 has 24 divisors (see below), whose sum is σ = 198827936. Its totient is φ = 128314368.

The previous prime is 161413127. The next prime is 161413183. The reversal of 161413147 is 741314161.

It is a happy number.

It is not a de Polignac number, because 161413147 - 215 = 161380379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161413127) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147133 + ... + 148225.

Almost surely, 2161413147 is an apocalyptic number.

161413147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

161413147 is a deficient number, since it is larger than the sum of its proper divisors (37414789).

161413147 is a wasteful number, since it uses less digits than its factorization.

161413147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207 (or 1190 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 161413147 is about 12704.8473820035. The cubic root of 161413147 is about 544.4771204770.

The spelling of 161413147 in words is "one hundred sixty-one million, four hundred thirteen thousand, one hundred forty-seven".

Divisors: 1 7 17 73 119 289 511 1093 1241 2023 7651 8687 18581 21097 79789 130067 147679 315877 558523 1356413 2211139 9494891 23059021 161413147