Search a number
-
+
152230451 = 192421691
BaseRepresentation
bin10010001001011…
…01101000110011
3101121110002220212
421010231220303
5302432333301
623034454335
73525636362
oct1104555063
9347402825
10152230451
1178a25a9a
1242b943ab
13257001b9
14163097d9
15d5704bb
hex912da33

152230451 has 6 divisors (see below), whose sum is σ = 160664652. Its totient is φ = 144217980.

The previous prime is 152230447. The next prime is 152230453. The reversal of 152230451 is 154032251.

It is not a de Polignac number, because 152230451 - 22 = 152230447 is a prime.

It is a super-2 number, since 2×1522304512 = 46348220423326802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152230453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210485 + ... + 211206.

It is an arithmetic number, because the mean of its divisors is an integer number (26777442).

Almost surely, 2152230451 is an apocalyptic number.

152230451 is a deficient number, since it is larger than the sum of its proper divisors (8434201).

152230451 is an equidigital number, since it uses as much as digits as its factorization.

152230451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421729 (or 421710 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 152230451 is about 12338.1704883666. The cubic root of 152230451 is about 533.9499022517.

The spelling of 152230451 in words is "one hundred fifty-two million, two hundred thirty thousand, four hundred fifty-one".

Divisors: 1 19 361 421691 8012129 152230451