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1345161455 = 511313721323
BaseRepresentation
bin101000000101101…
…1000100011101111
310110202011021121122
41100023120203233
510223330131310
6341251251155
745222453341
oct12013304357
93422137548
101345161455
11630343790
123165a9abb
131858bac31
14ca919291
157d161555
hex502d88ef

1345161455 has 32 divisors (see below), whose sum is σ = 1866958848. Its totient is φ = 921110400.

The previous prime is 1345161451. The next prime is 1345161469. The reversal of 1345161455 is 5541615431.

It is not a de Polignac number, because 1345161455 - 22 = 1345161451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345161451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52424 + ... + 73746.

It is an arithmetic number, because the mean of its divisors is an integer number (58342464).

Almost surely, 21345161455 is an apocalyptic number.

1345161455 is a deficient number, since it is larger than the sum of its proper divisors (521797393).

1345161455 is a wasteful number, since it uses less digits than its factorization.

1345161455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21407.

The product of its digits is 36000, while the sum is 35.

The square root of 1345161455 is about 36676.4427800734. The cubic root of 1345161455 is about 1103.8874725043.

Adding to 1345161455 its reverse (5541615431), we get a palindrome (6886776886).

The spelling of 1345161455 in words is "one billion, three hundred forty-five million, one hundred sixty-one thousand, four hundred fifty-five".

Divisors: 1 5 11 31 37 55 155 185 341 407 1147 1705 2035 5735 12617 21323 63085 106615 234553 661013 788951 1172765 3305065 3944755 7271143 8678461 24457481 36355715 43392305 122287405 269032291 1345161455