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124311161 = 132799311
BaseRepresentation
bin1110110100011…
…01011001111001
322122220122212002
413122031121321
5223310424121
620200230345
73036425132
oct732153171
9278818762
10124311161
11641968a7
123576b3b5
131c9a6300
141271cc89
15ada7e0b
hex768d679

124311161 has 12 divisors (see below), whose sum is σ = 136327680. Its totient is φ = 113284080.

The previous prime is 124311149. The next prime is 124311169. The reversal of 124311161 is 161113421.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-124311161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124311169) 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, 8696 + ... + 18006.

It is an arithmetic number, because the mean of its divisors is an integer number (11360640).

Almost surely, 2124311161 is an apocalyptic number.

It is an amenable number.

124311161 is a deficient number, since it is larger than the sum of its proper divisors (12016519).

124311161 is an equidigital number, since it uses as much as digits as its factorization.

124311161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9416 (or 9403 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 124311161 is about 11149.4915130691. The cubic root of 124311161 is about 499.0798557077.

Adding to 124311161 its reverse (161113421), we get a palindrome (285424582).

The spelling of 124311161 in words is "one hundred twenty-four million, three hundred eleven thousand, one hundred sixty-one".

Divisors: 1 13 79 169 1027 9311 13351 121043 735569 1573559 9562397 124311161