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1030142240 = 25547136987
BaseRepresentation
bin111101011001101…
…011100100100000
32122210101122111022
4331121223210200
54102204022430
6250115305012
734346031101
oct7531534440
92583348438
101030142240
11489541126
12248bab168
13135561b2a
149ab563a8
15606874e5
hex3d66b920

1030142240 has 48 divisors (see below), whose sum is σ = 2485510272. Its totient is φ = 403286784.

The previous prime is 1030142221. The next prime is 1030142257. The reversal of 1030142240 is 422410301.

1030142240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×10301422402 = 2122386069264435200, which contains 22 as substring.

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, 60974 + ... + 76013.

It is an arithmetic number, because the mean of its divisors is an integer number (51781464).

Almost surely, 21030142240 is an apocalyptic number.

1030142240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1030142240 is an abundant number, since it is smaller than the sum of its proper divisors (1455368032).

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

1030142240 is a wasteful number, since it uses less digits than its factorization.

1030142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137049 (or 137041 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1030142240 is about 32095.8290125057. The cubic root of 1030142240 is about 1009.9481200682.

Adding to 1030142240 its reverse (422410301), we get a palindrome (1452552541).

The spelling of 1030142240 in words is "one billion, thirty million, one hundred forty-two thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 47 80 94 160 188 235 376 470 752 940 1504 1880 3760 7520 136987 273974 547948 684935 1095896 1369870 2191792 2739740 4383584 5479480 6438389 10958960 12876778 21917920 25753556 32191945 51507112 64383890 103014224 128767780 206028448 257535560 515071120 1030142240