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154442350136 = 23197313918741
BaseRepresentation
bin1000111111010101111…
…0110011111000111000
3112202122100112021122002
42033311132303320320
510012244220201021
6154541055320132
714105140213244
oct2176536637070
9482570467562
10154442350136
115a5537535a8
1225b22520048
1311743a1c8c9
147691771424
15403dad150b
hex23f57b3e38

154442350136 has 32 divisors (see below), whose sum is σ = 308996072400. Its totient is φ = 72154748160.

The previous prime is 154442350133. The next prime is 154442350217. The reversal of 154442350136 is 631053244451.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 154442350136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154442350133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6948275 + ... + 6970466.

Almost surely, 2154442350136 is an apocalyptic number.

It is an amenable number.

154442350136 is an abundant number, since it is smaller than the sum of its proper divisors (154553722264).

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

154442350136 is a wasteful number, since it uses less digits than its factorization.

154442350136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918839 (or 13918835 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 154442350136 its reverse (631053244451), we get a palindrome (785495594587).

The spelling of 154442350136 in words is "one hundred fifty-four billion, four hundred forty-two million, three hundred fifty thousand, one hundred thirty-six".

Divisors: 1 2 4 8 19 38 73 76 146 152 292 584 1387 2774 5548 11096 13918741 27837482 55674964 111349928 264456079 528912158 1016068093 1057824316 2032136186 2115648632 4064272372 8128544744 19305293767 38610587534 77221175068 154442350136