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13011211104 = 253208165129
BaseRepresentation
bin11000001111000011…
…10101001101100000
31020120202220000012120
430013201311031200
5203121332223404
65551031224240
7640300320033
oct140741651540
936522800176
1013011211104
115577542531
122631518080
1312c47c88a8
148b604701a
155124189d9
hex307875360

13011211104 has 48 divisors (see below), whose sum is σ = 34171366320. Its totient is φ = 4334919680.

The previous prime is 13011211099. The next prime is 13011211117. The reversal of 13011211104 is 40111211031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×130112111042 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167212 + ... + 232340.

It is an arithmetic number, because the mean of its divisors is an integer number (711903465).

Almost surely, 213011211104 is an apocalyptic number.

It is an amenable number.

13011211104 is an abundant number, since it is smaller than the sum of its proper divisors (21160155216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13011211104 is a wasteful number, since it uses less digits than its factorization.

13011211104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67223 (or 67215 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 13011211104 its reverse (40111211031), we get a palindrome (53122422135).

It can be divided in two parts, 13011 and 211104, that added together give a triangular number (224115 = T669).

The spelling of 13011211104 in words is "thirteen billion, eleven million, two hundred eleven thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 2081 4162 6243 8324 12486 16648 24972 33296 49944 65129 66592 99888 130258 195387 199776 260516 390774 521032 781548 1042064 1563096 2084128 3126192 6252384 135533449 271066898 406600347 542133796 813200694 1084267592 1626401388 2168535184 3252802776 4337070368 6505605552 13011211104