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1031142200 = 235211835647
BaseRepresentation
bin111101011101011…
…111101100111000
32122212021110011212
4331131133230320
54102433022300
6250152542252
734360364324
oct7535375470
92585243155
101031142200
1148a064440
122493b1988
1313582201a
149ad36984
15607d3935
hex3d75fb38

1031142200 has 96 divisors (see below), whose sum is σ = 2647330560. Its totient is φ = 370377600.

The previous prime is 1031142197. The next prime is 1031142223. The reversal of 1031142200 is 22411301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179777 + ... + 185423.

It is an arithmetic number, because the mean of its divisors is an integer number (27576360).

Almost surely, 21031142200 is an apocalyptic number.

1031142200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031142200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1323665280).

1031142200 is an abundant number, since it is smaller than the sum of its proper divisors (1616188360).

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

1031142200 is a wasteful number, since it uses less digits than its factorization.

1031142200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5757 (or 5748 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1031142200 is about 32111.4029590736. The cubic root of 1031142200 is about 1010.2748002380.

Adding to 1031142200 its reverse (22411301), we get a palindrome (1053553501).

The spelling of 1031142200 in words is "one billion, thirty-one million, one hundred forty-two thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 83 88 100 110 166 200 220 275 332 415 440 550 664 830 913 1100 1660 1826 2075 2200 3320 3652 4150 4565 5647 7304 8300 9130 11294 16600 18260 22588 22825 28235 36520 45176 45650 56470 62117 91300 112940 124234 141175 182600 225880 248468 282350 310585 468701 496936 564700 621170 937402 1129400 1242340 1552925 1874804 2343505 2484680 3105850 3749608 4687010 5155711 6211700 9374020 10311422 11717525 12423400 18748040 20622844 23435050 25778555 41245688 46870100 51557110 93740200 103114220 128892775 206228440 257785550 515571100 1031142200