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28563457013 = 713799740961
BaseRepresentation
bin11010100110100000…
…111100001111110101
32201201122011221212022
4122212200330033311
5431444221111023
621042154002525
72030554243610
oct324640741765
981648157768
1028563457013
1111128366023
125651a16445
132902890470
14154d743177
15b229667c8
hex6a683c3f5

28563457013 has 32 divisors (see below), whose sum is σ = 35967912960. Its totient is φ = 22083010560.

The previous prime is 28563457007. The next prime is 28563457031. The reversal of 28563457013 is 31075436582.

It is not a de Polignac number, because 28563457013 - 226 = 28496348149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28563457033) 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 31 ways as a sum of consecutive naturals, for example, 676853 + ... + 717813.

It is an arithmetic number, because the mean of its divisors is an integer number (1123997280).

Almost surely, 228563457013 is an apocalyptic number.

It is an amenable number.

28563457013 is a deficient number, since it is larger than the sum of its proper divisors (7404455947).

28563457013 is a wasteful number, since it uses less digits than its factorization.

28563457013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41157.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 28563457013 in words is "twenty-eight billion, five hundred sixty-three million, four hundred fifty-seven thousand, thirteen".

Divisors: 1 7 13 79 91 97 553 679 1027 1261 7189 7663 8827 40961 53641 99619 286727 532493 697333 3235919 3727451 3973217 22651433 27812519 42066947 51651821 294468629 313884143 361562747 2197189001 4080493859 28563457013