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13223400140 = 225801782471
BaseRepresentation
bin11000101000010110…
…10001001011001100
31021010120011022211202
430110023101023030
5204040142301030
610024051205032
7645455021666
oct142413211314
937116138752
1013223400140
1156762a0275
1226905a6778
13132975cc32
148d62bd536
15525d7e745
hex3142d12cc

13223400140 has 24 divisors (see below), whose sum is σ = 27772940832. Its totient is φ = 5288636160.

The previous prime is 13223400131. The next prime is 13223400181. The reversal of 13223400140 is 4100432231.

It is a super-2 number, since 2×132234001402 (a number of 21 digits) contains 22 as substring.

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

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, 119105 + ... + 201575.

It is an arithmetic number, because the mean of its divisors is an integer number (1157205868).

Almost surely, 213223400140 is an apocalyptic number.

13223400140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13223400140 is an abundant number, since it is smaller than the sum of its proper divisors (14549540692).

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

13223400140 is a wasteful number, since it uses less digits than its factorization.

13223400140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90497 (or 90495 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 13223400140 its reverse (4100432231), we get a palindrome (17323832371).

The spelling of 13223400140 in words is "thirteen billion, two hundred twenty-three million, four hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 8017 16034 32068 40085 80170 82471 160340 164942 329884 412355 824710 1649420 661170007 1322340014 2644680028 3305850035 6611700070 13223400140