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13188005240 = 235329700131
BaseRepresentation
bin11000100100001000…
…01111110101111000
31021001002120002011112
430102010033311320
5204002112131430
610020344415452
7644545123604
oct142204176570
937032502145
1013188005240
115658315593
122680777588
1313223194c7
148d1708504
15522bdc195
hex31210fd78

13188005240 has 16 divisors (see below), whose sum is σ = 29673011880. Its totient is φ = 5275202080.

The previous prime is 13188005219. The next prime is 13188005261. The reversal of 13188005240 is 4250088131.

It is an interprime number because it is at equal distance from previous prime (13188005219) and next prime (13188005261).

It is a junction number, because it is equal to n+sod(n) for n = 13188005197 and 13188005206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164850026 + ... + 164850105.

Almost surely, 213188005240 is an apocalyptic number.

13188005240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13188005240 is an abundant number, since it is smaller than the sum of its proper divisors (16485006640).

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

13188005240 is a wasteful number, since it uses less digits than its factorization.

13188005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329700142 (or 329700138 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 13188005240 in words is "thirteen billion, one hundred eighty-eight million, five thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 20 40 329700131 659400262 1318800524 1648500655 2637601048 3297001310 6594002620 13188005240