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153880893 = 3217097877
BaseRepresentation
bin10010010110000…
…00100100111101
3101201112221220100
421023000210331
5303343142033
623134111313
73545652225
oct1113004475
9351487810
10153880893
1179952aa1
124364b539
1325b5a4aa
1416619085
15d799513
hex92c093d

153880893 has 6 divisors (see below), whose sum is σ = 222272414. Its totient is φ = 102587256.

The previous prime is 153880841. The next prime is 153880919. The reversal of 153880893 is 398088351.

It can be written as a sum of positive squares in only one way, i.e., 153809604 + 71289 = 12402^2 + 267^2 .

It is not a de Polignac number, because 153880893 - 29 = 153880381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153880813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8548930 + ... + 8548947.

Almost surely, 2153880893 is an apocalyptic number.

It is an amenable number.

153880893 is a deficient number, since it is larger than the sum of its proper divisors (68391521).

153880893 is a wasteful number, since it uses less digits than its factorization.

153880893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17097883 (or 17097880 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 153880893 is about 12404.8737599381. The cubic root of 153880893 is about 535.8726179160.

The spelling of 153880893 in words is "one hundred fifty-three million, eight hundred eighty thousand, eight hundred ninety-three".

Divisors: 1 3 9 17097877 51293631 153880893