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156227130 = 2355239269
BaseRepresentation
bin10010100111111…
…01011000111010
3101212222011100000
421103331120322
5304443232010
623300253430
73604623453
oct1123753072
9355864300
10156227130
1180205834
12443a1276
132649c3b7
1416a6a12a
15daae7c0
hex94fd63a

156227130 has 96 divisors (see below), whose sum is σ = 424569600. Its totient is φ = 41332032.

The previous prime is 156227111. The next prime is 156227173. The reversal of 156227130 is 31722651.

It is a happy number.

156227130 is a `hidden beast` number, since 1 + 5 + 622 + 7 + 1 + 30 = 666.

It is a super-2 number, since 2×1562271302 = 48813832296073800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 156227094 and 156227103.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 580636 + ... + 580904.

It is an arithmetic number, because the mean of its divisors is an integer number (4422600).

Almost surely, 2156227130 is an apocalyptic number.

156227130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 156227130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212284800).

156227130 is an abundant number, since it is smaller than the sum of its proper divisors (268342470).

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

156227130 is a wasteful number, since it uses less digits than its factorization.

156227130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 156227130 is about 12499.0851665232. The cubic root of 156227130 is about 538.5823928677.

Adding to 156227130 its reverse (31722651), we get a palindrome (187949781).

The spelling of 156227130 in words is "one hundred fifty-six million, two hundred twenty-seven thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 239 243 269 270 405 478 486 538 717 807 810 1195 1215 1345 1434 1614 2151 2390 2421 2430 2690 3585 4035 4302 4842 6453 7170 7263 8070 10755 12105 12906 14526 19359 21510 21789 24210 32265 36315 38718 43578 58077 64291 64530 65367 72630 96795 108945 116154 128582 130734 192873 193590 217890 290385 321455 326835 385746 578619 580770 642910 653670 964365 1157238 1735857 1928730 2893095 3471714 5207571 5786190 8679285 10415142 15622713 17358570 26037855 31245426 52075710 78113565 156227130