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154124002540242 = 23275631492172083
BaseRepresentation
bin100011000010110011001010…
…011011000011101011010010
3202012201002222201211012212100
4203002303022123003223102
5130200131424122241432
61303443331142541230
744315043314025450
oct4302631233035322
9665632881735770
10154124002540242
114512169347a749
1215352320737816
1367ccaa5b4c6c7
142a0b8da4b79d0
1512c41bb96807c
hex8c2cca6c3ad2

154124002540242 has 48 divisors (see below), whose sum is σ = 381641240635200. Its totient is φ = 44035330828896.

The previous prime is 154124002540241. The next prime is 154124002540283. The reversal of 154124002540242 is 242045200421451.

154124002540242 is a `hidden beast` number, since 1 + 5 + 4 + 1 + 2 + 400 + 2 + 5 + 4 + 0 + 242 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 154124002540197 and 154124002540206.

It is not an unprimeable number, because it can be changed into a prime (154124002540241) 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, 69870733 + ... + 72042815.

It is an arithmetic number, because the mean of its divisors is an integer number (7950859179900).

Almost surely, 2154124002540242 is an apocalyptic number.

154124002540242 is an abundant number, since it is smaller than the sum of its proper divisors (227517238094958).

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

154124002540242 is a wasteful number, since it uses less digits than its factorization.

154124002540242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735247 (or 2735244 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 36.

Adding to 154124002540242 its reverse (242045200421451), we get a palindrome (396169202961693).

The spelling of 154124002540242 in words is "one hundred fifty-four trillion, one hundred twenty-four billion, two million, five hundred forty thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 563149 1126298 1689447 2172083 3378894 3942043 4344166 5068341 6516249 7884086 10136682 11826129 13032498 15204581 19548747 23652258 30409162 35478387 39097494 45613743 70956774 91227486 136841229 273682458 1223206369367 2446412738734 3669619108101 7339238216202 8562444585569 11008857324303 17124889171138 22017714648606 25687333756707 51374667513414 77062001270121 154124002540242