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28605551368376 = 23231791427608633
BaseRepresentation
bin1101000000100001111111…
…01110100101100010111000
310202021122221001120200210102
412200100333232211202320
512222133132122242001
6140501113041334532
76011453141524463
oct640207756454270
9122248831520712
1028605551368376
119129601003014
12325bb45337448
1312c6651993248
1470c73216a2da
153491691d3e6b
hex1a043fba58b8

28605551368376 has 64 divisors (see below), whose sum is σ = 56319582009600. Its totient is φ = 13594930210048.

The previous prime is 28605551368367. The next prime is 28605551368397. The reversal of 28605551368376 is 67386315550682.

It is a happy number.

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, 46695356 + ... + 47303988.

It is an arithmetic number, because the mean of its divisors is an integer number (879993468900).

Almost surely, 228605551368376 is an apocalyptic number.

It is an amenable number.

28605551368376 is a deficient number, since it is larger than the sum of its proper divisors (27714030641224).

28605551368376 is a wasteful number, since it uses less digits than its factorization.

28605551368376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610268 (or 610264 counting only the distinct ones).

The product of its (nonzero) digits is 217728000, while the sum is 65.

The spelling of 28605551368376 in words is "twenty-eight trillion, six hundred five billion, five hundred fifty-one million, three hundred sixty-eight thousand, three hundred seventy-six".

Divisors: 1 2 4 8 23 46 92 179 184 358 716 1427 1432 2854 4117 5708 8234 11416 16468 32821 32936 65642 131284 255433 262568 510866 608633 1021732 1217266 2043464 2434532 4869064 5874959 11749918 13998559 23499836 27997118 46999672 55994236 108945307 111988472 217890614 435781228 868519291 871562456 1737038582 2505742061 3474077164 5011484122 6948154328 10022968244 19975943693 20045936488 39951887386 79903774772 155464953089 159807549544 310929906178 621859812356 1243719624712 3575693921047 7151387842094 14302775684188 28605551368376