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21213363130024 = 2313238868462847
BaseRepresentation
bin1001101001011000111101…
…11110010100111010101000
32210002222101202020221211211
410310230132332110322220
510240024431430130044
6113041141241002504
74316420625323452
oct464543676247250
983088352227754
1021213363130024
11683959a50153a
122467360483434
13bab547272a70
14534a374392d2
1526bc1cd02634
hex134b1ef94ea8

21213363130024 has 32 divisors (see below), whose sum is σ = 44697052753920. Its totient is φ = 9365096765376.

The previous prime is 21213363129989. The next prime is 21213363130067. The reversal of 21213363130024 is 42003136331212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4434229032 + ... + 4434233815.

It is an arithmetic number, because the mean of its divisors is an integer number (1396782898560).

Almost surely, 221213363130024 is an apocalyptic number.

It is an amenable number.

21213363130024 is an abundant number, since it is smaller than the sum of its proper divisors (23483689623896).

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

21213363130024 is a wasteful number, since it uses less digits than its factorization.

21213363130024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8868462889 (or 8868462885 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 21213363130024 its reverse (42003136331212), we get a palindrome (63216499461236).

The spelling of 21213363130024 in words is "twenty-one trillion, two hundred thirteen billion, three hundred sixty-three million, one hundred thirty thousand, twenty-four".

Divisors: 1 2 4 8 13 23 26 46 52 92 104 184 299 598 1196 2392 8868462847 17736925694 35473851388 70947702776 115290017011 203974645481 230580034022 407949290962 461160068044 815898581924 922320136088 1631797163848 2651670391253 5303340782506 10606681565012 21213363130024