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1303890079 = 23713132551
BaseRepresentation
bin100110110110111…
…1100100010011111
310100212111110221011
41031231330202133
510132243440304
6333214520051
744211611542
oct11555744237
93325443834
101303890079
1160a014a08
12304806027
1317a19a7bb
14c5254859
157970cc04
hex4db7c89f

1303890079 has 16 divisors (see below), whose sum is σ = 1384694784. Its totient is φ = 1225224000.

The previous prime is 1303890061. The next prime is 1303890109. The reversal of 1303890079 is 9700983031.

It is a cyclic number.

It is not a de Polignac number, because 1303890079 - 29 = 1303889567 is a prime.

It is a super-2 number, since 2×13038900792 = 3400258676229252482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303890019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509854 + ... + 512404.

It is an arithmetic number, because the mean of its divisors is an integer number (86543424).

Almost surely, 21303890079 is an apocalyptic number.

1303890079 is a deficient number, since it is larger than the sum of its proper divisors (80804705).

1303890079 is a wasteful number, since it uses less digits than its factorization.

1303890079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2958.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 1303890079 is about 36109.4181481785. The cubic root of 1303890079 is about 1092.4804155629.

The spelling of 1303890079 in words is "one billion, three hundred three million, eight hundred ninety thousand, seventy-nine".

Divisors: 1 23 71 313 1633 2551 7199 22223 58673 181121 511129 798463 4165783 18364649 56690873 1303890079