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85119212520 = 23325320373819
BaseRepresentation
bin100111101000110000…
…0000001101111101000
322010201002211000101200
41033101200001233220
52343311004300040
6103034144044200
76102222240306
oct1172140015750
9263632730350
1085119212520
113310a638231
12145b6303660
1380468a3054
1441969cd276
152332b22630
hex13d1801be8

85119212520 has 96 divisors (see below), whose sum is σ = 276727557600. Its totient is φ = 22691062656.

The previous prime is 85119212447. The next prime is 85119212527. The reversal of 85119212520 is 2521291158.

85119212520 is a `hidden beast` number, since 8 + 5 + 119 + 2 + 12 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (85119212527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1116171 + ... + 1189989.

It is an arithmetic number, because the mean of its divisors is an integer number (2882578725).

Almost surely, 285119212520 is an apocalyptic number.

It is an amenable number.

85119212520 is an abundant number, since it is smaller than the sum of its proper divisors (191608345080).

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

85119212520 is a wasteful number, since it uses less digits than its factorization.

85119212520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77039 (or 77032 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The spelling of 85119212520 in words is "eighty-five billion, one hundred nineteen million, two hundred twelve thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 3203 6406 9609 12812 16015 19218 25624 28827 32030 38436 48045 57654 64060 73819 76872 96090 115308 128120 144135 147638 192180 221457 230616 288270 295276 369095 384360 442914 576540 590552 664371 738190 885828 1107285 1153080 1328742 1476380 1771656 2214570 2657484 2952760 3321855 4429140 5314968 6643710 8858280 13287420 26574840 236442257 472884514 709326771 945769028 1182211285 1418653542 1891538056 2127980313 2364422570 2837307084 3546633855 4255960626 4728845140 5674614168 7093267710 8511921252 9457690280 10639901565 14186535420 17023842504 21279803130 28373070840 42559606260 85119212520