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13123604104 = 23131713156663
BaseRepresentation
bin11000011100011101…
…00100111010001000
31020212121101011102021
430032032210322020
5203334120312404
610010124214224
7643133536312
oct141616447210
936777334367
1013123604104
115624a29006
12266309a374
131311b8b220
148c6d427b2
1551c21a454
hex30e3a4e88

13123604104 has 64 divisors (see below), whose sum is σ = 28273069440. Its totient is φ = 5657134080.

The previous prime is 13123604101. The next prime is 13123604107. The reversal of 13123604104 is 40140632131.

It is an interprime number because it is at equal distance from previous prime (13123604101) and next prime (13123604107).

It is not an unprimeable number, because it can be changed into a prime (13123604101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203277 + ... + 259939.

It is an arithmetic number, because the mean of its divisors is an integer number (441766710).

Almost surely, 213123604104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13123604104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14136534720).

13123604104 is an abundant number, since it is smaller than the sum of its proper divisors (15149465336).

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

13123604104 is a wasteful number, since it uses less digits than its factorization.

13123604104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56830 (or 56826 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 13123604104 in words is "thirteen billion, one hundred twenty-three million, six hundred four thousand, one hundred four".

Divisors: 1 2 4 8 13 17 26 34 52 68 104 131 136 221 262 442 524 884 1048 1703 1768 2227 3406 4454 6812 8908 13624 17816 28951 56663 57902 113326 115804 226652 231608 453304 736619 963271 1473238 1926542 2946476 3853084 5892952 7422853 7706168 12522523 14845706 25045046 29691412 50090092 59382824 96497089 100180184 126188501 192994178 252377002 385988356 504754004 771976712 1009508008 1640450513 3280901026 6561802052 13123604104