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212504020000 = 255412783663
BaseRepresentation
bin1100010111101000111…
…0100000010000100000
3202022111202210201022021
43011322032200100200
511440202012120000
6241342322351224
721232022236546
oct3057216402040
9668452721267
10212504020000
1182138a85528
12352271bb514
1317067a1578c
14a3dca1dd96
1557db0a411a
hex317a3a0420

212504020000 has 120 divisors (see below), whose sum is σ = 526914533376. Its totient is φ = 84331296000.

The previous prime is 212504019953. The next prime is 212504020013. The reversal of 212504020000 is 20405212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2498169 + ... + 2581831.

Almost surely, 2212504020000 is an apocalyptic number.

212504020000 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 212504020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263457266688).

212504020000 is an abundant number, since it is smaller than the sum of its proper divisors (314410513376).

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

212504020000 is an equidigital number, since it uses as much as digits as its factorization.

212504020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83820 (or 83797 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

Adding to 212504020000 its reverse (20405212), we get a palindrome (212524425212).

The spelling of 212504020000 in words is "two hundred twelve billion, five hundred four million, twenty thousand".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 125 127 160 200 250 254 400 500 508 625 635 800 1000 1016 1250 1270 2000 2032 2500 2540 3175 4000 4064 5000 5080 6350 10000 10160 12700 15875 20000 20320 25400 31750 50800 63500 79375 83663 101600 127000 158750 167326 254000 317500 334652 418315 508000 635000 669304 836630 1270000 1338608 1673260 2091575 2540000 2677216 3346520 4183150 6693040 8366300 10457875 10625201 13386080 16732600 20915750 21250402 33465200 41831500 42500804 52289375 53126005 66930400 83663000 85001608 104578750 106252010 167326000 170003216 209157500 212504020 265630025 334652000 340006432 418315000 425008040 531260050 836630000 850016080 1062520100 1328150125 1673260000 1700032160 2125040200 2656300250 4250080400 5312600500 6640750625 8500160800 10625201000 13281501250 21250402000 26563002500 42500804000 53126005000 106252010000 212504020000