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1023131130 = 235731157163
BaseRepresentation
bin111100111110111…
…011110111111010
32122022012110001120
4330332323313322
54043410144010
6245305130110
734232320410
oct7476736772
92568173046
101023131130
1148559261a
12246789936
13133c78848
1499c4d2b0
155ec4ee70
hex3cfbbdfa

1023131130 has 64 divisors (see below), whose sum is σ = 2896846848. Its totient is φ = 226313280.

The previous prime is 1023131129. The next prime is 1023131147. The reversal of 1023131130 is 311313201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72072 + ... + 85091.

It is an arithmetic number, because the mean of its divisors is an integer number (45263232).

Almost surely, 21023131130 is an apocalyptic number.

1023131130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023131130 is an abundant number, since it is smaller than the sum of its proper divisors (1873715718).

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

1023131130 is a wasteful number, since it uses less digits than its factorization.

1023131130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157211.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1023131130 is about 31986.4210251788. The cubic root of 1023131130 is about 1007.6516791423.

Adding to 1023131130 its reverse (311313201), we get a palindrome (1334444331).

The spelling of 1023131130 in words is "one billion, twenty-three million, one hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 31 35 42 62 70 93 105 155 186 210 217 310 434 465 651 930 1085 1302 2170 3255 6510 157163 314326 471489 785815 942978 1100141 1571630 2200282 2357445 3300423 4714890 4872053 5500705 6600846 9744106 11001410 14616159 16502115 24360265 29232318 33004230 34104371 48720530 68208742 73080795 102313113 146161590 170521855 204626226 341043710 511565565 1023131130