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154240641132 = 22312853386761
BaseRepresentation
bin1000111110100101110…
…1010110100001101100
3112202010021222101220020
42033221131112201230
510011341101004012
6154505052122140
714100140550324
oct2175135264154
9482107871806
10154240641132
115a45a903646
1225a86a66350
1311710cb7776
147672a66284
15402b03aa8c
hex23e975686c

154240641132 has 12 divisors (see below), whose sum is σ = 359894829336. Its totient is φ = 51413547040.

The previous prime is 154240641119. The next prime is 154240641151. The reversal of 154240641132 is 231146042451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 154240641093 and 154240641102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6426693369 + ... + 6426693392.

It is an arithmetic number, because the mean of its divisors is an integer number (29991235778).

Almost surely, 2154240641132 is an apocalyptic number.

154240641132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

154240641132 is an abundant number, since it is smaller than the sum of its proper divisors (205654188204).

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

154240641132 is a wasteful number, since it uses less digits than its factorization.

154240641132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12853386768 (or 12853386766 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

Adding to 154240641132 its reverse (231146042451), we get a palindrome (385386683583).

The spelling of 154240641132 in words is "one hundred fifty-four billion, two hundred forty million, six hundred forty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 12853386761 25706773522 38560160283 51413547044 77120320566 154240641132