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20023213014 = 2337152334781
BaseRepresentation
bin10010101001011110…
…011111101111010110
31220200110012121112000
4102221132133233112
5312001420304024
613110514540130
71306123334220
oct225136375726
956613177460
1020023213014
118545644332
123a69897646
131b7144464c
14d7d409410
157c2d03cc9
hex4a979fbd6

20023213014 has 64 divisors (see below), whose sum is σ = 50887457280. Its totient is φ = 5716997280.

The previous prime is 20023212983. The next prime is 20023213019. The reversal of 20023213014 is 41031232002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023213019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 558304 + ... + 593084.

It is an arithmetic number, because the mean of its divisors is an integer number (795116520).

Almost surely, 220023213014 is an apocalyptic number.

20023213014 is an abundant number, since it is smaller than the sum of its proper divisors (30864244266).

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

20023213014 is a wasteful number, since it uses less digits than its factorization.

20023213014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36322 (or 36316 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20023213014 its reverse (41031232002), we get a palindrome (61054445016).

The spelling of 20023213014 in words is "twenty billion, twenty-three million, two hundred thirteen thousand, fourteen".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 1523 3046 4569 9138 10661 13707 21322 27414 31983 34781 41121 63966 69562 82242 95949 104343 191898 208686 243467 287847 313029 486934 575694 626058 730401 939087 1460802 1878174 2191203 4382406 6573609 13147218 52971463 105942926 158914389 317828778 370800241 476743167 741600482 953486334 1112400723 1430229501 2224801446 2860459002 3337202169 6674404338 10011606507 20023213014