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13870528500 = 223539247019
BaseRepresentation
bin11001110101011111…
…10111011111110100
31022210122211212001210
430322233313133310
5211401323403000
610212205321420
71000503355413
oct147257673764
938718755053
1013870528500
1159786083a4
122831266270
131400849b1a
1495821347a
15562aab350
hex33abf77f4

13870528500 has 48 divisors (see below), whose sum is σ = 40390983360. Its totient is φ = 3698807200.

The previous prime is 13870528499. The next prime is 13870528571. The reversal of 13870528500 is 582507831.

It is a congruent number.

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, 4622010 + ... + 4625009.

It is an arithmetic number, because the mean of its divisors is an integer number (841478820).

Almost surely, 213870528500 is an apocalyptic number.

13870528500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13870528500 is an abundant number, since it is smaller than the sum of its proper divisors (26520454860).

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

13870528500 is a wasteful number, since it uses less digits than its factorization.

13870528500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9247041 (or 9247029 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 13870528500 in words is "thirteen billion, eight hundred seventy million, five hundred twenty-eight thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 125 150 250 300 375 500 750 1500 9247019 18494038 27741057 36988076 46235095 55482114 92470190 110964228 138705285 184940380 231175475 277410570 462350950 554821140 693526425 924701900 1155877375 1387052850 2311754750 2774105700 3467632125 4623509500 6935264250 13870528500