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213504000420 = 223531114787097
BaseRepresentation
bin1100011011010111010…
…1001000000110100100
3202102002110102222120010
43012311311020012210
511444224011003140
6242025443410220
721265554026424
oct3066565100644
9672073388503
10213504000420
1182601495627
1235466083970
1317196c46a79
14a495764484
155848c7e880
hex31b5d481a4

213504000420 has 48 divisors (see below), whose sum is σ = 617095438848. Its totient is φ = 55097806080.

The previous prime is 213504000397. The next prime is 213504000431. The reversal of 213504000420 is 24000405312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57391689 + ... + 57395408.

It is an arithmetic number, because the mean of its divisors is an integer number (12856154976).

Almost surely, 2213504000420 is an apocalyptic number.

213504000420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213504000420 is an abundant number, since it is smaller than the sum of its proper divisors (403591438428).

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

213504000420 is a wasteful number, since it uses less digits than its factorization.

213504000420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114787140 (or 114787138 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 213504000420 its reverse (24000405312), we get a palindrome (237504405732).

The spelling of 213504000420 in words is "two hundred thirteen billion, five hundred four million, four hundred twenty", and thus it is an aban number.

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 93 124 155 186 310 372 465 620 930 1860 114787097 229574194 344361291 459148388 573935485 688722582 1147870970 1377445164 1721806455 2295741940 3443612910 3558400007 6887225820 7116800014 10675200021 14233600028 17792000035 21350400042 35584000070 42700800084 53376000105 71168000140 106752000210 213504000420