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153325220 = 2257666261
BaseRepresentation
bin10010010001110…
…00111010100100
3101200111201122212
421020320322210
5303222401340
623114142552
73541146206
oct1110707244
9350451585
10153325220
1179603564
1243421a58
13259c45a9
1416512776
15d6d9a65
hex9238ea4

153325220 has 12 divisors (see below), whose sum is σ = 321983004. Its totient is φ = 61330080.

The previous prime is 153325217. The next prime is 153325223. The reversal of 153325220 is 22523351.

It is an interprime number because it is at equal distance from previous prime (153325217) and next prime (153325223).

It can be written as a sum of positive squares in 2 ways, for example, as 24820324 + 128504896 = 4982^2 + 11336^2 .

It is not an unprimeable number, because it can be changed into a prime (153325223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3833111 + ... + 3833150.

It is an arithmetic number, because the mean of its divisors is an integer number (26831917).

Almost surely, 2153325220 is an apocalyptic number.

153325220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153325220 is an abundant number, since it is smaller than the sum of its proper divisors (168657784).

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

153325220 is a wasteful number, since it uses less digits than its factorization.

153325220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666270 (or 7666268 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 153325220 is about 12382.4561376166. The cubic root of 153325220 is about 535.2268173841.

Adding to 153325220 its reverse (22523351), we get a palindrome (175848571).

The spelling of 153325220 in words is "one hundred fifty-three million, three hundred twenty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 7666261 15332522 30665044 38331305 76662610 153325220