Search a number
-
+
153130215 = 3571976757
BaseRepresentation
bin10010010000010…
…01010011100111
3101200010211011110
421020021103213
5303200131330
623110040103
73536404530
oct1110112347
9350124143
10153130215
117948aaa7
1243349033
13259568c4
14164a1687
15d69bdb0
hex92094e7

153130215 has 32 divisors (see below), whose sum is σ = 294750720. Its totient is φ = 66317184.

The previous prime is 153130151. The next prime is 153130261. The reversal of 153130215 is 512031351.

It is not a de Polignac number, because 153130215 - 26 = 153130151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 153130191 and 153130200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36384 + ... + 40373.

It is an arithmetic number, because the mean of its divisors is an integer number (9210960).

Almost surely, 2153130215 is an apocalyptic number.

153130215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

153130215 is a deficient number, since it is larger than the sum of its proper divisors (141620505).

153130215 is a wasteful number, since it uses less digits than its factorization.

153130215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76791.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 153130215 is about 12374.5793867913. The cubic root of 153130215 is about 534.9998136663. Note that the first 3 decimals are identical.

Adding to 153130215 its reverse (512031351), we get a palindrome (665161566).

The spelling of 153130215 in words is "one hundred fifty-three million, one hundred thirty thousand, two hundred fifteen".

Divisors: 1 3 5 7 15 19 21 35 57 95 105 133 285 399 665 1995 76757 230271 383785 537299 1151355 1458383 1611897 2686495 4375149 7291915 8059485 10208681 21875745 30626043 51043405 153130215