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213528800 = 2552892999
BaseRepresentation
bin11001011101000…
…11000011100000
3112212210101110002
430232203003200
5414130410200
633104355132
75201651642
oct1456430340
9485711402
10213528800
11aa593391
125b615aa8
1335313104
1420504892
1513b2cbd5
hexcba30e0

213528800 has 72 divisors (see below), whose sum is σ = 527310000. Its totient is φ = 84423680.

The previous prime is 213528797. The next prime is 213528811. The reversal of 213528800 is 8825312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69701 + ... + 72699.

It is an arithmetic number, because the mean of its divisors is an integer number (7323750).

Almost surely, 2213528800 is an apocalyptic number.

213528800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213528800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263655000).

213528800 is an abundant number, since it is smaller than the sum of its proper divisors (313781200).

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

213528800 is a wasteful number, since it uses less digits than its factorization.

213528800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108 (or 3095 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 213528800 is about 14612.6246786811. The cubic root of 213528800 is about 597.7030699263.

The spelling of 213528800 in words is "two hundred thirteen million, five hundred twenty-eight thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 89 100 160 178 200 356 400 445 712 800 890 1424 1780 2225 2848 2999 3560 4450 5998 7120 8900 11996 14240 14995 17800 23992 29990 35600 47984 59980 71200 74975 95968 119960 149950 239920 266911 299900 479840 533822 599800 1067644 1199600 1334555 2135288 2399200 2669110 4270576 5338220 6672775 8541152 10676440 13345550 21352880 26691100 42705760 53382200 106764400 213528800