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152078245 = 51121731453
BaseRepresentation
bin10010001000010…
…00011110100101
3101121011101010121
421010020132211
5302413000440
623031321541
73524433544
oct1104103645
9347141117
10152078245
1178931700
1242b202b1
1325678b37
14162aa15b
15d54034a
hex91087a5

152078245 has 24 divisors (see below), whose sum is σ = 201890808. Its totient is φ = 109887360.

The previous prime is 152078197. The next prime is 152078317. The reversal of 152078245 is 542870251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 89699841 + 62378404 = 9471^2 + 7898^2 .

It is not a de Polignac number, because 152078245 - 221 = 149981093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 152078245.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 103939 + ... + 105391.

It is an arithmetic number, because the mean of its divisors is an integer number (8412117).

Almost surely, 2152078245 is an apocalyptic number.

It is an amenable number.

152078245 is a deficient number, since it is larger than the sum of its proper divisors (49812563).

152078245 is a wasteful number, since it uses less digits than its factorization.

152078245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 152078245 is about 12332.0008514434. Note that the first 3 decimals coincide. The cubic root of 152078245 is about 533.7718881966.

The spelling of 152078245 in words is "one hundred fifty-two million, seventy-eight thousand, two hundred forty-five".

Divisors: 1 5 11 55 121 173 605 865 1453 1903 7265 9515 15983 20933 79915 104665 175813 251369 879065 1256845 2765059 13825295 30415649 152078245