Search a number
-
+
155142013230 = 2335574600049
BaseRepresentation
bin1001000001111100101…
…1110100000100101110
3112211110010001211222000
42100133023310010232
510020212323410410
6155134331433130
714131364232321
oct2203713640456
9484403054860
10155142013230
115a882692866
12260988b57a6
1311825971839
14771a65c7b8
154080238dc0
hex241f2f412e

155142013230 has 32 divisors (see below), whose sum is σ = 413712036000. Its totient is φ = 41371203456.

The previous prime is 155142013219. The next prime is 155142013231. The reversal of 155142013230 is 32310241551.

155142013230 is a `hidden beast` number, since 1 + 5 + 5 + 1 + 420 + 1 + 3 + 230 = 666.

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 = 155142013194 and 155142013203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155142013231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287299755 + ... + 287300294.

It is an arithmetic number, because the mean of its divisors is an integer number (12928501125).

Almost surely, 2155142013230 is an apocalyptic number.

155142013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155142013230 is an abundant number, since it is smaller than the sum of its proper divisors (258570022770).

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

155142013230 is a wasteful number, since it uses less digits than its factorization.

155142013230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574600065 (or 574600059 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 155142013230 its reverse (32310241551), we get a palindrome (187452254781).

The spelling of 155142013230 in words is "one hundred fifty-five billion, one hundred forty-two million, thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 574600049 1149200098 1723800147 2873000245 3447600294 5171400441 5746000490 8619000735 10342800882 15514201323 17238001470 25857002205 31028402646 51714004410 77571006615 155142013230