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152420553 = 3227116247
BaseRepresentation
bin10010001010111…
…00000011001001
3101121210202200200
421011130003021
5303004424203
623042522413
73530360535
oct1105340311
9347722620
10152420553
11790458aa
1243066409
132576889c
1416358bc5
15d5ab9a3
hex915c0c9

152420553 has 12 divisors (see below), whose sum is σ = 220279488. Its totient is φ = 101559960.

The previous prime is 152420539. The next prime is 152420557. The reversal of 152420553 is 355024251.

It is a happy number.

It is not a de Polignac number, because 152420553 - 28 = 152420297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (152420557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21276 + ... + 27522.

It is an arithmetic number, because the mean of its divisors is an integer number (18356624).

Almost surely, 2152420553 is an apocalyptic number.

It is an amenable number.

152420553 is a deficient number, since it is larger than the sum of its proper divisors (67858935).

152420553 is a wasteful number, since it uses less digits than its factorization.

152420553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8964 (or 8961 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 152420553 is about 12345.8719011660. The cubic root of 152420553 is about 534.1720713831.

The spelling of 152420553 in words is "one hundred fifty-two million, four hundred twenty thousand, five hundred fifty-three".

Divisors: 1 3 9 2711 6247 8133 18741 24399 56223 16935617 50806851 152420553