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1355089754 = 21739855581
BaseRepresentation
bin101000011000101…
…0000011101011010
310111102211200200102
41100301100131122
510233400333004
6342244135402
745403033664
oct12061203532
93442750612
101355089754
11635a04a97
12319997562
13187985c75
14cbd81534
157de7311e
hex50c5075a

1355089754 has 8 divisors (see below), whose sum is σ = 2152201428. Its totient is φ = 637689280.

The previous prime is 1355089753. The next prime is 1355089793. The reversal of 1355089754 is 4579805531.

It can be written as a sum of positive squares in 2 ways, for example, as 1217661025 + 137428729 = 34895^2 + 11723^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1355089699 and 1355089708.

It is not an unprimeable number, because it can be changed into a prime (1355089751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19927757 + ... + 19927824.

Almost surely, 21355089754 is an apocalyptic number.

1355089754 is a deficient number, since it is larger than the sum of its proper divisors (797111674).

1355089754 is a wasteful number, since it uses less digits than its factorization.

1355089754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39855600.

The product of its (nonzero) digits is 756000, while the sum is 47.

The square root of 1355089754 is about 36811.5437600761. The cubic root of 1355089754 is about 1106.5966568952.

The spelling of 1355089754 in words is "one billion, three hundred fifty-five million, eighty-nine thousand, seven hundred fifty-four".

Divisors: 1 2 17 34 39855581 79711162 677544877 1355089754