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745000285020 = 223523619872141
BaseRepresentation
bin10101101011101010111…
…10100011001101011100
32122012222100110201202220
422311311132203031130
544201230033110040
61330125353345340
7104552541636525
oct12656536431534
92565870421686
10745000285020
11267a532698a2
12100477108250
135533a44aa24
14280b5a0984c
15145a4a502d0
hexad757a335c

745000285020 has 96 divisors (see below), whose sum is σ = 2180215457280. Its totient is φ = 189721847040.

The previous prime is 745000284983. The next prime is 745000285033. The reversal of 745000285020 is 20582000547.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 418150 + ... + 1290290.

It is an arithmetic number, because the mean of its divisors is an integer number (22710577680).

Almost surely, 2745000285020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745000285020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1090107728640).

745000285020 is an abundant number, since it is smaller than the sum of its proper divisors (1435215172260).

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

745000285020 is a wasteful number, since it uses less digits than its factorization.

745000285020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872795 (or 872793 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 33.

Adding to 745000285020 its reverse (20582000547), we get a palindrome (765582285567).

The spelling of 745000285020 in words is "seven hundred forty-five billion, two hundred eighty-five thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 23 30 46 60 69 92 115 138 230 276 345 460 619 690 1238 1380 1857 2476 3095 3714 6190 7428 9285 12380 14237 18570 28474 37140 42711 56948 71185 85422 142370 170844 213555 284740 427110 854220 872141 1744282 2616423 3488564 4360705 5232846 8721410 10465692 13082115 17442820 20059243 26164230 40118486 52328460 60177729 80236972 100296215 120355458 200592430 240710916 300888645 401184860 539855279 601777290 1079710558 1203554580 1619565837 2159421116 2699276395 3239131674 5398552790 6478263348 8097829185 10797105580 12416671417 16195658370 24833342834 32391316740 37250014251 49666685668 62083357085 74500028502 124166714170 149000057004 186250071255 248333428340 372500142510 745000285020