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13115504433 = 31943137139281
BaseRepresentation
bin11000011011011111…
…01011011100110001
31020212001010122202110
430031233223130301
5203330032120213
610005234435533
7643004643153
oct141557533461
936761118673
1013115504433
1156203a6669
122660432ba9
1313102b3615
148c5c34ad3
1551b66a5c3
hex30dbeb731

13115504433 has 64 divisors (see below), whose sum is σ = 19177804800. Its totient is φ = 7945620480.

The previous prime is 13115504419. The next prime is 13115504449. The reversal of 13115504433 is 33440551131.

It is not a de Polignac number, because 13115504433 - 210 = 13115503409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13115504433.

It is not an unprimeable number, because it can be changed into a prime (13115504933) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46674253 + ... + 46674533.

It is an arithmetic number, because the mean of its divisors is an integer number (299653200).

Almost surely, 213115504433 is an apocalyptic number.

It is an amenable number.

13115504433 is a deficient number, since it is larger than the sum of its proper divisors (6062300367).

13115504433 is a wasteful number, since it uses less digits than its factorization.

13115504433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 13115504433 in words is "thirteen billion, one hundred fifteen million, five hundred four thousand, four hundred thirty-three".

Divisors: 1 3 19 43 57 129 137 139 281 411 417 817 843 2451 2603 2641 5339 5891 5977 7809 7923 12083 16017 17673 17931 19043 36249 38497 39059 57129 111929 113563 115491 117177 229577 335787 340689 361817 688731 731443 742121 818849 1085451 1655371 1679537 2194329 2226363 2456547 4966113 5038611 5351083 15558131 16053249 31452049 31911203 46674393 94356147 95733609 101670577 230096569 305011731 690289707 4371834811 13115504433