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20030103212 = 2271223584923
BaseRepresentation
bin10010101001111000…
…110001111010101100
31220200221011200002112
4102221320301322230
5312010201300322
613111322343152
71306236032240
oct225170617254
956627150075
1020030103212
118549520009
123a7005aab8
131b729b78a2
14d802c0420
157c37155e2
hex4a9e31eac

20030103212 has 24 divisors (see below), whose sum is σ = 40093030656. Its totient is φ = 8577296208.

The previous prime is 20030103193. The next prime is 20030103229. The reversal of 20030103212 is 21230103002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 258218 + ... + 326705.

It is an arithmetic number, because the mean of its divisors is an integer number (1670542944).

Almost surely, 220030103212 is an apocalyptic number.

It is an amenable number.

20030103212 is an abundant number, since it is smaller than the sum of its proper divisors (20062927444).

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

20030103212 is a wasteful number, since it uses less digits than its factorization.

20030103212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586157 (or 586155 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20030103212 its reverse (21230103002), we get a palindrome (41260206214).

The spelling of 20030103212 in words is "twenty billion, thirty million, one hundred three thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 1223 2446 4892 8561 17122 34244 584923 1169846 2339692 4094461 8188922 16377844 715360829 1430721658 2861443316 5007525803 10015051606 20030103212