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213233012320 = 2552359956473
BaseRepresentation
bin1100011010010110101…
…1011000111001100000
3202101101120112100202211
43012211223120321200
511443200122343240
6241542523251504
721256053461566
oct3064553307140
9671346470684
10213233012320
1182482527219
12353ab379b94
1317152a66293
14a46b783a36
1558300a1bea
hex31a5ad8e60

213233012320 has 48 divisors (see below), whose sum is σ = 503793259200. Its totient is φ = 85288080384.

The previous prime is 213233012303. The next prime is 213233012329. The reversal of 213233012320 is 23210332312.

It is a super-2 number, since 2×2132330123202 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213233012291 and 213233012300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233012329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3747604 + ... + 3804076.

It is an arithmetic number, because the mean of its divisors is an integer number (10495692900).

Almost surely, 2213233012320 is an apocalyptic number.

213233012320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213233012320 is an abundant number, since it is smaller than the sum of its proper divisors (290560246880).

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

213233012320 is a wasteful number, since it uses less digits than its factorization.

213233012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80087 (or 80079 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213233012320 its reverse (23210332312), we get a palindrome (236443344632).

The spelling of 213233012320 in words is "two hundred thirteen billion, two hundred thirty-three million, twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 23599 47198 56473 94396 112946 117995 188792 225892 235990 282365 377584 451784 471980 564730 755168 903568 943960 1129460 1807136 1887920 2258920 3775840 4517840 9035680 1332706327 2665412654 5330825308 6663531635 10661650616 13327063270 21323301232 26654126540 42646602464 53308253080 106616506160 213233012320