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148936439924 = 221923531607621
BaseRepresentation
bin1000101010110101001…
…1011011100001110100
3112020102122012001201122
42022231103123201310
54420010212034144
6152230452443112
713521532565006
oct2125523334164
9466378161648
10148936439924
1158188812788
1224a46619498
1311077119a7c
1472cc41a376
153d1a5457ee
hex22ad4db874

148936439924 has 48 divisors (see below), whose sum is σ = 291686935680. Its totient is φ = 66208222080.

The previous prime is 148936439887. The next prime is 148936439929. The reversal of 148936439924 is 429934639841.

148936439924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1489364399242 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148936439929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711167 + ... + 896454.

It is an arithmetic number, because the mean of its divisors is an integer number (6076811160).

Almost surely, 2148936439924 is an apocalyptic number.

It is an amenable number.

148936439924 is a deficient number, since it is larger than the sum of its proper divisors (142750495756).

148936439924 is a wasteful number, since it uses less digits than its factorization.

148936439924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607720 (or 1607718 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 62.

The spelling of 148936439924 in words is "one hundred forty-eight billion, nine hundred thirty-six million, four hundred thirty-nine thousand, nine hundred twenty-four".

Divisors: 1 2 4 19 23 38 46 53 76 92 106 212 437 874 1007 1219 1748 2014 2438 4028 4876 23161 46322 92644 1607621 3215242 6430484 30544799 36975283 61089598 73950566 85203913 122179196 147901132 170407826 340815652 702530377 1405060754 1618874347 1959689999 2810121508 3237748694 3919379998 6475497388 7838759996 37234109981 74468219962 148936439924