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20422400422402 = 21117397137544959
BaseRepresentation
bin1001010010010111101011…
…11011000011001000000010
32200022100210012101020101201
410221023311323003020002
510134100034002004102
6111233530553051414
74205320056252556
oct451136573031002
980270705336351
1020422400422402
11656410069a320
122359bb86b6b6a
13b51a93702994
14508641435866
15256378106987
hex1292f5ec3202

20422400422402 has 32 divisors (see below), whose sum is σ = 35473395363840. Its totient is φ = 8714848538880.

The previous prime is 20422400422313. The next prime is 20422400422423.

20422400422402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68624002 + ... + 68920957.

It is an arithmetic number, because the mean of its divisors is an integer number (1108543605120).

Almost surely, 220422400422402 is an apocalyptic number.

20422400422402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20422400422402 is a deficient number, since it is larger than the sum of its proper divisors (15050994941438).

20422400422402 is a wasteful number, since it uses less digits than its factorization.

20422400422402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137545386.

The product of its (nonzero) digits is 16384, while the sum is 28.

It can be divided in two parts, 20422400 and 422402, that added together give a palindrome (20844802).

The spelling of 20422400422402 in words is "twenty trillion, four hundred twenty-two billion, four hundred million, four hundred twenty-two thousand, four hundred two".

Divisors: 1 2 11 17 22 34 187 374 397 794 4367 6749 8734 13498 74239 148478 137544959 275089918 1512994549 2338264303 3025989098 4676528606 25720907333 51441814666 54605348723 109210697446 600658835953 928290928291 1201317671906 1856581856582 10211200211201 20422400422402