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123101132 = 22721157097
BaseRepresentation
bin1110101011001…
…01111111001100
322120122012000012
413111211333030
5223003214012
620114252352
73023225300
oct725457714
9276565005
10123101132
116353a780
12352870b8
131c67160b
14124c5d00
15ac19622
hex7565fcc

123101132 has 36 divisors (see below), whose sum is σ = 273385224. Its totient is φ = 47960640.

The previous prime is 123101119. The next prime is 123101161. The reversal of 123101132 is 231101321.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26393 + ... + 30704.

It is an arithmetic number, because the mean of its divisors is an integer number (7594034).

Almost surely, 2123101132 is an apocalyptic number.

It is an amenable number.

123101132 is an abundant number, since it is smaller than the sum of its proper divisors (150284092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123101132 is a wasteful number, since it uses less digits than its factorization.

123101132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57126 (or 57117 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 123101132 is about 11095.0949522751. The cubic root of 123101132 is about 497.4552464309.

Adding to 123101132 its reverse (231101321), we get a palindrome (354202453).

The spelling of 123101132 in words is "one hundred twenty-three million, one hundred one thousand, one hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 539 1078 2156 57097 114194 228388 399679 628067 799358 1256134 1598716 2512268 2797753 4396469 5595506 8792938 11191012 17585876 30775283 61550566 123101132