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85284805152 = 2531675319661
BaseRepresentation
bin100111101101101011…
…1101101101000100000
322011010122101222210010
41033123113231220200
52344130402231102
6103102421204520
76106302611541
oct1173327555040
9264118358703
1085284805152
113319505a448
1214641860740
138071ca1261
1441b09b64c8
152342431d6c
hex13db5eda20

85284805152 has 48 divisors (see below), whose sum is σ = 225213210432. Its totient is φ = 28258033920.

The previous prime is 85284805147. The next prime is 85284805153. The reversal of 85284805152 is 25150848258.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (85284805153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2643799 + ... + 2675862.

It is an arithmetic number, because the mean of its divisors is an integer number (4691941884).

Almost surely, 285284805152 is an apocalyptic number.

It is an amenable number.

85284805152 is an abundant number, since it is smaller than the sum of its proper divisors (139928405280).

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

85284805152 is a wasteful number, since it uses less digits than its factorization.

85284805152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319841 (or 5319833 counting only the distinct ones).

The product of its (nonzero) digits is 1024000, while the sum is 48.

The spelling of 85284805152 in words is "eighty-five billion, two hundred eighty-four million, eight hundred five thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 167 334 501 668 1002 1336 2004 2672 4008 5344 8016 16032 5319661 10639322 15958983 21278644 31917966 42557288 63835932 85114576 127671864 170229152 255343728 510687456 888383387 1776766774 2665150161 3553533548 5330300322 7107067096 10660600644 14214134192 21321201288 28428268384 42642402576 85284805152