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13050400520 = 2351074496791
BaseRepresentation
bin11000010011101110…
…10100111100001000
31020200111122000222102
430021313110330020
5203211400304040
65554551212532
7641254400633
oct141167247410
936614560872
1013050400520
11559767a083
122642677148
1312cc96a4b1
148bb328c1a
15515aaa515
hex309dd4f08

13050400520 has 64 divisors (see below), whose sum is σ = 29708208000. Its totient is φ = 5159096320.

The previous prime is 13050400513. The next prime is 13050400547. The reversal of 13050400520 is 2500405031.

13050400520 is nontrivially palindromic in base 15.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13050400492 and 13050400501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1918325 + ... + 1925115.

It is an arithmetic number, because the mean of its divisors is an integer number (464190750).

Almost surely, 213050400520 is an apocalyptic number.

13050400520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13050400520 is an abundant number, since it is smaller than the sum of its proper divisors (16657807480).

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

13050400520 is a wasteful number, since it uses less digits than its factorization.

13050400520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7358 (or 7354 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 13050400520 its reverse (2500405031), we get a palindrome (15550805551).

The spelling of 13050400520 in words is "thirteen billion, fifty million, four hundred thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 107 214 428 449 535 856 898 1070 1796 2140 2245 3592 4280 4490 6791 8980 13582 17960 27164 33955 48043 54328 67910 96086 135820 192172 240215 271640 384344 480430 726637 960860 1453274 1921720 2906548 3049159 3633185 5813096 6098318 7266370 12196636 14532740 15245795 24393272 29065480 30491590 60983180 121966360 326260013 652520026 1305040052 1631300065 2610080104 3262600130 6525200260 13050400520