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52500000280 = 23571314423077
BaseRepresentation
bin110000111001001111…
…100110111000011000
312000111211000100021211
4300321033212320120
51330010000002110
640041305112504
73535666432210
oct607117467030
9160454010254
1052500000280
11202a0977292
12a212188734
134c4899c330
142780781240
1515740c098a
hexc393e6e18

52500000280 has 64 divisors (see below), whose sum is σ = 145384626240. Its totient is φ = 16615383552.

The previous prime is 52500000263. The next prime is 52500000281. The reversal of 52500000280 is 8200000525.

52500000280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52500000281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7207899 + ... + 7215178.

It is an arithmetic number, because the mean of its divisors is an integer number (2271634785).

Almost surely, 252500000280 is an apocalyptic number.

It is an amenable number.

52500000280 is an abundant number, since it is smaller than the sum of its proper divisors (92884625960).

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

52500000280 is a wasteful number, since it uses less digits than its factorization.

52500000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14423108 (or 14423104 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 52500000280 in words is "fifty-two billion, five hundred million, two hundred eighty", and thus it is an aban number.

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3640 14423077 28846154 57692308 72115385 100961539 115384616 144230770 187500001 201923078 288461540 375000002 403846156 504807695 576923080 750000004 807692312 937500005 1009615390 1312500007 1500000008 1875000010 2019230780 2625000014 3750000020 4038461560 5250000028 6562500035 7500000040 10500000056 13125000070 26250000140 52500000280