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1030231120 = 24595313513
BaseRepresentation
bin111101011010000…
…001010001010000
32122210120011102011
4331122001101100
54102214343440
6250121232304
734346551162
oct7532012120
92583504364
101030231120
114895a1986
12249032694
13135593419
149ab7a932
15606a39ea
hex3d681450

1030231120 has 40 divisors (see below), whose sum is σ = 2397978216. Its totient is φ = 411629568.

The previous prime is 1030231079. The next prime is 1030231121. The reversal of 1030231120 is 211320301.

It can be written as a sum of positive squares in 4 ways, for example, as 86266944 + 943964176 = 9288^2 + 30724^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×10302311202 = 2122752321232908800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030231120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030231121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69484 + ... + 82996.

Almost surely, 21030231120 is an apocalyptic number.

1030231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030231120 is an abundant number, since it is smaller than the sum of its proper divisors (1367747096).

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

1030231120 is a wasteful number, since it uses less digits than its factorization.

1030231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14479 (or 14473 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1030231120 is about 32097.2135862289. The cubic root of 1030231120 is about 1009.9771651211.

Adding to 1030231120 its reverse (211320301), we get a palindrome (1241551421).

The spelling of 1030231120 in words is "one billion, thirty million, two hundred thirty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 953 1906 3812 4765 7624 9530 13513 15248 19060 27026 38120 54052 67565 76240 108104 135130 216208 270260 540520 1081040 12877889 25755778 51511556 64389445 103023112 128778890 206046224 257557780 515115560 1030231120