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1248428090 = 257131371899
BaseRepresentation
bin100101001101001…
…1000000000111010
310020000010201101102
41022122120000322
510024044144330
6323514051402
742636315020
oct11232300072
93200121342
101248428090
11590783558
122aa119b62
1316b84c260
14bbb38710
1574904945
hex4a69803a

1248428090 has 32 divisors (see below), whose sum is σ = 2765750400. Its totient is φ = 395106624.

The previous prime is 1248428081. The next prime is 1248428101. The reversal of 1248428090 is 908248421.

1248428090 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 685040 + ... + 686859.

It is an arithmetic number, because the mean of its divisors is an integer number (86429700).

Almost surely, 21248428090 is an apocalyptic number.

1248428090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1248428090 is an abundant number, since it is smaller than the sum of its proper divisors (1517322310).

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

1248428090 is a wasteful number, since it uses less digits than its factorization.

1248428090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371926.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1248428090 is about 35333.1019017578. The cubic root of 1248428090 is about 1076.7656119495.

The spelling of 1248428090 in words is "one billion, two hundred forty-eight million, four hundred twenty-eight thousand, ninety".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 130 182 455 910 1371899 2743798 6859495 9603293 13718990 17834687 19206586 35669374 48016465 89173435 96032930 124842809 178346870 249685618 624214045 1248428090