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152144428 = 22214317749
BaseRepresentation
bin10010001000110…
…00101000101100
3101121021201220211
421010120220230
5302422110203
623032552204
73525130522
oct1104305054
9347251824
10152144428
11789773a7
1242b52664
132569ccb7
14162c6312
15d554c6d
hex9118a2c

152144428 has 12 divisors (see below), whose sum is σ = 266392000. Its totient is φ = 76032432.

The previous prime is 152144423. The next prime is 152144453. The reversal of 152144428 is 824441251.

It is a self number, because there is not a number n which added to its sum of digits gives 152144428.

It is not an unprimeable number, because it can be changed into a prime (152144423) 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, 303 + ... + 17446.

Almost surely, 2152144428 is an apocalyptic number.

It is an amenable number.

152144428 is a deficient number, since it is larger than the sum of its proper divisors (114247572).

152144428 is a wasteful number, since it uses less digits than its factorization.

152144428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19896 (or 19894 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 152144428 is about 12334.6839440660. The cubic root of 152144428 is about 533.8493077765.

Adding to 152144428 its reverse (824441251), we get a palindrome (976585679).

The spelling of 152144428 in words is "one hundred fifty-two million, one hundred forty-four thousand, four hundred twenty-eight".

Divisors: 1 2 4 2143 4286 8572 17749 35498 70996 38036107 76072214 152144428