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154140356 = 2238535089
BaseRepresentation
bin10010010111111…
…11111011000100
3101202001010211002
421023333323010
5303424442411
623143432432
73551112536
oct1113777304
9352033732
10154140356
117a00aa27
1243755718
1325c1b616
1416685856
15d7eb33b
hex92ffec4

154140356 has 6 divisors (see below), whose sum is σ = 269745630. Its totient is φ = 77070176.

The previous prime is 154140341. The next prime is 154140359. The reversal of 154140356 is 653041451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 145926400 + 8213956 = 12080^2 + 2866^2 .

It is not an unprimeable number, because it can be changed into a prime (154140359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19267541 + ... + 19267548.

It is an arithmetic number, because the mean of its divisors is an integer number (44957605).

Almost surely, 2154140356 is an apocalyptic number.

It is an amenable number.

154140356 is a deficient number, since it is larger than the sum of its proper divisors (115605274).

154140356 is a wasteful number, since it uses less digits than its factorization.

154140356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38535093 (or 38535091 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 154140356 is about 12415.3274624554. The cubic root of 154140356 is about 536.1736322081.

The spelling of 154140356 in words is "one hundred fifty-four million, one hundred forty thousand, three hundred fifty-six".

Divisors: 1 2 4 38535089 77070178 154140356