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20122321302 = 2322334797883
BaseRepresentation
bin10010101111011000…
…100100000110010110
31220221100200211112100
4102233120210012112
5312202303240202
613124415102530
71311435623526
oct225730440626
956840624470
1020122321302
118596586906
123a96b11a46
131b88b352c5
14d8c647686
157cb87e41c
hex4af624196

20122321302 has 24 divisors (see below), whose sum is σ = 43785489384. Its totient is φ = 6678651744.

The previous prime is 20122321291. The next prime is 20122321319. The reversal of 20122321302 is 20312322102.

20122321302 is a `hidden beast` number, since 20 + 1 + 22 + 321 + 302 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2394748 + ... + 2403135.

It is an arithmetic number, because the mean of its divisors is an integer number (1824395391).

Almost surely, 220122321302 is an apocalyptic number.

20122321302 is an abundant number, since it is smaller than the sum of its proper divisors (23663168082).

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

20122321302 is a wasteful number, since it uses less digits than its factorization.

20122321302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798124 (or 4798121 counting only the distinct ones).

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

Adding to 20122321302 its reverse (20312322102), we get a palindrome (40434643404).

The spelling of 20122321302 in words is "twenty billion, one hundred twenty-two million, three hundred twenty-one thousand, three hundred two".

Divisors: 1 2 3 6 9 18 233 466 699 1398 2097 4194 4797883 9595766 14393649 28787298 43180947 86361894 1117906739 2235813478 3353720217 6707440434 10061160651 20122321302