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121434148 = 22112376781
BaseRepresentation
bin1110011110011…
…11000000100100
322110111111100001
413033033000210
5222041343043
620014431044
73003113263
oct717170044
9273444301
10121434148
1162601300
1234802484
131c209934
14121b05da
15a9da74d
hex73cf024

121434148 has 36 divisors (see below), whose sum is σ = 239933596. Its totient is φ = 53697600.

The previous prime is 121434109. The next prime is 121434151. The reversal of 121434148 is 841434121.

It can be written as a sum of positive squares in 2 ways, for example, as 83759104 + 37675044 = 9152^2 + 6138^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14518 + ... + 21298.

Almost surely, 2121434148 is an apocalyptic number.

It is an amenable number.

121434148 is a deficient number, since it is larger than the sum of its proper divisors (118499448).

121434148 is a wasteful number, since it uses less digits than its factorization.

121434148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6844 (or 6831 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 121434148 is about 11019.7163302873. The cubic root of 121434148 is about 495.1995902937.

Adding to 121434148 its reverse (841434121), we get a palindrome (962868269).

The spelling of 121434148 in words is "one hundred twenty-one million, four hundred thirty-four thousand, one hundred forty-eight".

Divisors: 1 2 4 11 22 37 44 74 121 148 242 407 484 814 1628 4477 6781 8954 13562 17908 27124 74591 149182 250897 298364 501794 820501 1003588 1641002 2759867 3282004 5519734 11039468 30358537 60717074 121434148