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28600146144 = 253429380483
BaseRepresentation
bin11010101000101100…
…111001100011100000
32201211012012221220000
4122220230321203200
5432033114134034
621045544220000
72031511142163
oct325054714340
981735187800
1028600146144
1111147045119
12566216a600
13290a367ccb
141554573ada
15b25cb2599
hex6a8b398e0

28600146144 has 120 divisors (see below), whose sum is σ = 87012885960. Its totient is φ = 9204620544.

The previous prime is 28600146143. The next prime is 28600146199. The reversal of 28600146144 is 44164100682.

It is a happy number.

28600146144 is a `hidden beast` number, since 2 + 8 + 600 + 1 + 4 + 6 + 1 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 28600146099 and 28600146108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28600146143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 115074 + ... + 265409.

It is an arithmetic number, because the mean of its divisors is an integer number (725107383).

Almost surely, 228600146144 is an apocalyptic number.

28600146144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28600146144 is an abundant number, since it is smaller than the sum of its proper divisors (58412739816).

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

28600146144 is a wasteful number, since it uses less digits than its factorization.

28600146144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380534 (or 380517 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 28600146144 in words is "twenty-eight billion, six hundred million, one hundred forty-six thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 29 32 36 48 54 58 72 81 87 96 108 116 144 162 174 216 232 261 288 324 348 432 464 522 648 696 783 864 928 1044 1296 1392 1566 2088 2349 2592 2784 3132 4176 4698 6264 8352 9396 12528 18792 25056 37584 75168 380483 760966 1141449 1521932 2282898 3043864 3424347 4565796 6087728 6848694 9131592 10273041 11034007 12175456 13697388 18263184 20546082 22068014 27394776 30819123 33102021 36526368 41092164 44136028 54789552 61638246 66204042 82184328 88272056 99306063 109579104 123276492 132408084 164368656 176544112 198612126 246552984 264816168 297918189 328737312 353088224 397224252 493105968 529632336 595836378 794448504 893754567 986211936 1059264672 1191672756 1588897008 1787509134 2383345512 3177794016 3575018268 4766691024 7150036536 9533382048 14300073072 28600146144