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1054137728 = 2778211433
BaseRepresentation
bin111110110101001…
…101110110000000
32201110112202010002
4332311031312000
54124324401403
6252333455132
735060010560
oct7665156600
92643482102
101054137728
114a1040306
122550414a8
1313a513a47
14a0000da0
1562827188
hex3ed4dd80

1054137728 has 64 divisors (see below), whose sum is σ = 2404645920. Its totient is φ = 450908160.

The previous prime is 1054137709. The next prime is 1054137779. The reversal of 1054137728 is 8277314501.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×10541377282 = 2222412699186003968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1054137691 and 1054137700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734900 + ... + 736332.

Almost surely, 21054137728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1054137728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202322960).

1054137728 is an abundant number, since it is smaller than the sum of its proper divisors (1350508192).

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

1054137728 is an equidigital number, since it uses as much as digits as its factorization.

1054137728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2263 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 1054137728 is about 32467.4872449347. The cubic root of 1054137728 is about 1017.7297090173.

The spelling of 1054137728 in words is "one billion, fifty-four million, one hundred thirty-seven thousand, seven hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 821 896 1433 1642 2866 3284 5732 5747 6568 10031 11464 11494 13136 20062 22928 22988 26272 40124 45856 45976 52544 80248 91712 91952 105088 160496 183424 183904 320992 367808 641984 735616 1176493 1283968 2352986 4705972 8235451 9411944 16470902 18823888 32941804 37647776 65883608 75295552 131767216 150591104 263534432 527068864 1054137728