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20001020302422 = 2321297856721507
BaseRepresentation
bin1001000110000110110011…
…01101011101010001010110
32121211002010111100020110100
410203003121231131101112
510110144042144134142
6110312201502434530
74133011633321335
oct443033155352126
977732114306410
1020001020302422
116411426598385
1222b03b9292a46
13b2111b7abb93
144d20a9971d1c
1524a414727b4c
hex1230d9b5d456

20001020302422 has 24 divisors (see below), whose sum is σ = 43368956177976. Its totient is φ = 6661866430656.

The previous prime is 20001020302399. The next prime is 20001020302423. The reversal of 20001020302422 is 22420302010002.

20001020302422 is a `hidden beast` number, since 200 + 0 + 10 + 2 + 0 + 30 + 2 + 422 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20001020302395 and 20001020302404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001020302423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428337408 + ... + 428384099.

It is an arithmetic number, because the mean of its divisors is an integer number (1807039840749).

Almost surely, 220001020302422 is an apocalyptic number.

20001020302422 is an abundant number, since it is smaller than the sum of its proper divisors (23367935875554).

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

20001020302422 is a wasteful number, since it uses less digits than its factorization.

20001020302422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856722812 (or 856722809 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20001020302422 its reverse (22420302010002), we get a palindrome (42421322312424).

The spelling of 20001020302422 in words is "twenty trillion, one billion, twenty million, three hundred two thousand, four hundred twenty-two".

Divisors: 1 2 3 6 9 18 1297 2594 3891 7782 11673 23346 856721507 1713443014 2570164521 5140329042 7710493563 15420987126 1111167794579 2222335589158 3333503383737 6667006767474 10000510151211 20001020302422