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420000025284 = 223371493728561
BaseRepresentation
bin1100001110010011111…
…00111100101011000100
31111011002112010220221000
412013021330330223010
523340130001302114
6520540110053300
742225664211430
oct6071174745304
91434075126830
10420000025284
11152137079414
12694951aa230
13307b5024628
14164844939c0
15add266be09
hex61c9f3cac4

420000025284 has 96 divisors (see below), whose sum is σ = 1252796832000. Its totient is φ = 119194606080.

The previous prime is 420000025187. The next prime is 420000025301. The reversal of 420000025284 is 482520000024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1751637 + ... + 1976924.

It is an arithmetic number, because the mean of its divisors is an integer number (13049967000).

Almost surely, 2420000025284 is an apocalyptic number.

It is an amenable number.

420000025284 is an abundant number, since it is smaller than the sum of its proper divisors (832796806716).

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

420000025284 is a wasteful number, since it uses less digits than its factorization.

420000025284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3728730 (or 3728722 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The spelling of 420000025284 in words is "four hundred twenty billion, twenty-five thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 84 108 126 149 189 252 298 378 447 596 756 894 1043 1341 1788 2086 2682 3129 4023 4172 5364 6258 8046 9387 12516 16092 18774 28161 37548 56322 112644 3728561 7457122 11185683 14914244 22371366 26099927 33557049 44742732 52199854 67114098 78299781 100671147 104399708 134228196 156599562 201342294 234899343 313199124 402684588 469798686 555555589 704698029 939597372 1111111178 1409396058 1666666767 2222222356 2818792116 3333333534 3888889123 5000000301 6666667068 7777778246 10000000602 11666667369 15000000903 15555556492 20000001204 23333334738 30000001806 35000002107 46666669476 60000003612 70000004214 105000006321 140000008428 210000012642 420000025284