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1303102290 = 235718733313
BaseRepresentation
bin100110110101011…
…1100001101010010
310100211000110021210
41031222330031102
510132043233130
6333150000550
744202121020
oct11552741522
93324013253
101303102290
11609627046
123044a6156
13179c83059
14c50cb710
15796045b0
hex4dabc352

1303102290 has 64 divisors (see below), whose sum is σ = 3577211136. Its totient is φ = 297603072.

The previous prime is 1303102271. The next prime is 1303102291. The reversal of 1303102290 is 922013031.

It is a happy number.

1303102290 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1303102291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391674 + ... + 394986.

It is an arithmetic number, because the mean of its divisors is an integer number (55893924).

Almost surely, 21303102290 is an apocalyptic number.

1303102290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1303102290 is an abundant number, since it is smaller than the sum of its proper divisors (2274108846).

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

1303102290 is a wasteful number, since it uses less digits than its factorization.

1303102290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5203.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1303102290 is about 36098.5081409191. The cubic root of 1303102290 is about 1092.2603516543.

The spelling of 1303102290 in words is "one billion, three hundred three million, one hundred two thousand, two hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 1873 3313 3746 5619 6626 9365 9939 11238 13111 16565 18730 19878 23191 26222 28095 33130 39333 46382 49695 56190 65555 69573 78666 99390 115955 131110 139146 196665 231910 347865 393330 695730 6205249 12410498 18615747 31026245 37231494 43436743 62052490 86873486 93078735 130310229 186157470 217183715 260620458 434367430 651551145 1303102290