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20257122254716 = 22173755793144307
BaseRepresentation
bin1001001101100011110101…
…00100110111111101111100
32122201120011200100101111201
410212301322210313331330
510123343041244122331
6111025554332225244
74160346242102434
oct446617244677574
978646150311451
1020257122254716
1164aaaa7457706
122331b7130b224
13b3c313ab1b19
145006429312c4
15251e030b7a61
hex126c7a937f7c

20257122254716 has 48 divisors (see below), whose sum is σ = 38550680402976. Its totient is φ = 9274890645504.

The previous prime is 20257122254687. The next prime is 20257122254723. The reversal of 20257122254716 is 61745222175202.

It is a congruent number.

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, 140303035 + ... + 140447341.

It is an arithmetic number, because the mean of its divisors is an integer number (803139175062).

Almost surely, 220257122254716 is an apocalyptic number.

It is an amenable number.

20257122254716 is a deficient number, since it is larger than the sum of its proper divisors (18293558148260).

20257122254716 is a wasteful number, since it uses less digits than its factorization.

20257122254716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200158 (or 200156 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 46.

The spelling of 20257122254716 in words is "twenty trillion, two hundred fifty-seven billion, one hundred twenty-two million, two hundred fifty-four thousand, seven hundred sixteen".

Divisors: 1 2 4 17 34 37 68 74 148 629 1258 2516 55793 111586 144307 223172 288614 577228 948481 1896962 2064341 2453219 3793924 4128682 4906438 5339359 8257364 9812876 10678718 21357436 35093797 70187594 90769103 140375188 181538206 363076412 8051320451 16102640902 32205281804 136872447667 273744895334 297898856687 547489790668 595797713374 1191595426748 5064280563679 10128561127358 20257122254716