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20452423677231 = 3713521585724551
BaseRepresentation
bin1001010011001111100110…
…11100101011010100101111
32200102020021120102121101210
410221213303130223110233
510140043030430132411
6111255414055405503
74210432060565010
oct451476334532457
980366246377353
1020452423677231
116575907a77017
122363997383893
13b5486984a820
14509c8c9b5007
15257033cc5ca6
hex1299f372b52f

20452423677231 has 64 divisors (see below), whose sum is σ = 33634483255296. Its totient is φ = 10765108224000.

The previous prime is 20452423677139. The next prime is 20452423677251. The reversal of 20452423677231 is 13277632425402.

It is a happy number.

It is not a de Polignac number, because 20452423677231 - 234 = 20435243808047 is a prime.

It is a super-2 number, since 2×204524236772312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452423677251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 833046406 + ... + 833070956.

It is an arithmetic number, because the mean of its divisors is an integer number (525538800864).

Almost surely, 220452423677231 is an apocalyptic number.

20452423677231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20452423677231 is a deficient number, since it is larger than the sum of its proper divisors (13182059578065).

20452423677231 is a wasteful number, since it uses less digits than its factorization.

20452423677231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30952.

The product of its (nonzero) digits is 3386880, while the sum is 48.

The spelling of 20452423677231 in words is "twenty trillion, four hundred fifty-two billion, four hundred twenty-three million, six hundred seventy-seven thousand, two hundred thirty-one".

Divisors: 1 3 7 13 21 39 91 273 521 1563 3647 5857 6773 10941 17571 20319 24551 40999 47411 73653 76141 122997 142233 171857 228423 319163 515571 532987 957489 1598961 2234141 3051497 6702423 9154491 12791071 21360479 38373213 39669461 64081437 89537497 119008383 143795207 166283923 268612491 277686227 431385621 498851769 833058681 1006566449 1163987461 1869337691 3019699347 3491962383 5608013073 13085363837 39256091511 74917302847 224751908541 524421119929 973924937011 1573263359787 2921774811033 6817474559077 20452423677231