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155430026 = 2534633167
BaseRepresentation
bin10010100001110…
…10110010001010
3101211110122220122
421100322302022
5304242230101
623231223242
73565063523
oct1120726212
9354418818
10155430026
117a810974
1244077b22
132628063b
14168dd84a
15d9a351b
hex943ac8a

155430026 has 16 divisors (see below), whose sum is σ = 238132224. Its totient is φ = 76059984.

The previous prime is 155429983. The next prime is 155430029. The reversal of 155430026 is 620034551.

It is a junction number, because it is equal to n+sod(n) for n = 155429977 and 155430004.

It is not an unprimeable number, because it can be changed into a prime (155430029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47495 + ... + 50661.

It is an arithmetic number, because the mean of its divisors is an integer number (14883264).

Almost surely, 2155430026 is an apocalyptic number.

155430026 is a deficient number, since it is larger than the sum of its proper divisors (82702198).

155430026 is a wasteful number, since it uses less digits than its factorization.

155430026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 155430026 is about 12467.1578958478. The cubic root of 155430026 is about 537.6648433284.

Adding to 155430026 its reverse (620034551), we get a palindrome (775464577).

The spelling of 155430026 in words is "one hundred fifty-five million, four hundred thirty thousand, twenty-six".

Divisors: 1 2 53 106 463 926 3167 6334 24539 49078 167851 335702 1466321 2932642 77715013 155430026