Search a number
-
+
153143620 = 22572156269
BaseRepresentation
bin10010010000011…
…00100101000100
3101200011111112221
421020030211010
5303201043440
623110222124
73536461600
oct1110144504
9350144487
10153143620
117949a083
1243354944
132595ca36
14164a6500
15d6a0d4a
hex920c944

153143620 has 36 divisors (see below), whose sum is σ = 374110380. Its totient is φ = 52506048.

The previous prime is 153143603. The next prime is 153143621. The reversal of 153143620 is 26341351.

It can be written as a sum of positive squares in 2 ways, for example, as 43480836 + 109662784 = 6594^2 + 10472^2 .

It is not an unprimeable number, because it can be changed into a prime (153143621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77155 + ... + 79114.

It is an arithmetic number, because the mean of its divisors is an integer number (10391955).

Almost surely, 2153143620 is an apocalyptic number.

153143620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153143620 is an abundant number, since it is smaller than the sum of its proper divisors (220966760).

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

153143620 is a wasteful number, since it uses less digits than its factorization.

153143620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156292 (or 156283 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 153143620 is about 12375.1210095094. The cubic root of 153143620 is about 535.0154244832.

Adding to 153143620 its reverse (26341351), we get a palindrome (179484971).

The spelling of 153143620 in words is "one hundred fifty-three million, one hundred forty-three thousand, six hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 490 980 156269 312538 625076 781345 1093883 1562690 2187766 3125380 4375532 5469415 7657181 10938830 15314362 21877660 30628724 38285905 76571810 153143620