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152297620 = 22553143677
BaseRepresentation
bin10010001001111…
…10000010010100
3101121120112001121
421010332002110
5302442010440
623040133324
73526336246
oct1104760224
9347515047
10152297620
1178a71502
1243007244
1325724947
1416326096
15d58534a
hex913e094

152297620 has 24 divisors (see below), whose sum is σ = 325861704. Its totient is φ = 59769216.

The previous prime is 152297617. The next prime is 152297653. The reversal of 152297620 is 26792251.

It can be written as a sum of positive squares in 4 ways, for example, as 80353296 + 71944324 = 8964^2 + 8482^2 .

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 7 ways as a sum of consecutive naturals, for example, 70779 + ... + 72898.

It is an arithmetic number, because the mean of its divisors is an integer number (13577571).

Almost surely, 2152297620 is an apocalyptic number.

152297620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

152297620 is an abundant number, since it is smaller than the sum of its proper divisors (173564084).

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

152297620 is a wasteful number, since it uses less digits than its factorization.

152297620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143739 (or 143737 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 152297620 is about 12340.8921881686. The cubic root of 152297620 is about 534.0284226947.

The spelling of 152297620 in words is "one hundred fifty-two million, two hundred ninety-seven thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 143677 287354 574708 718385 1436770 2873540 7614881 15229762 30459524 38074405 76148810 152297620