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1042031320 = 2351117139309
BaseRepresentation
bin111110000111000…
…010001011011000
32200121202200020121
4332013002023120
54113230000240
6251222203024
734552056121
oct7607021330
92617680217
101042031320
11495221610
12250b83474
13137b654a5
149c56d048
156173504a
hex3e1c22d8

1042031320 has 64 divisors (see below), whose sum is σ = 2708186400. Its totient is φ = 356628480.

The previous prime is 1042031311. The next prime is 1042031329. The reversal of 1042031320 is 231302401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1042031311) and next prime (1042031329).

It is a junction number, because it is equal to n+sod(n) for n = 1042031294 and 1042031303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042031329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62175 + ... + 77134.

Almost surely, 21042031320 is an apocalyptic number.

1042031320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042031320 is an abundant number, since it is smaller than the sum of its proper divisors (1666155080).

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

1042031320 is a wasteful number, since it uses less digits than its factorization.

1042031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139348 (or 139344 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1042031320 is about 32280.5099092316. The cubic root of 1042031320 is about 1013.8186065411.

Adding to 1042031320 its reverse (231302401), we get a palindrome (1273333721).

The spelling of 1042031320 in words is "one billion, forty-two million, thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 17 20 22 34 40 44 55 68 85 88 110 136 170 187 220 340 374 440 680 748 935 1496 1870 3740 7480 139309 278618 557236 696545 1114472 1393090 1532399 2368253 2786180 3064798 4736506 5572360 6129596 7661995 9473012 11841265 12259192 15323990 18946024 23682530 26050783 30647980 47365060 52101566 61295960 94730120 104203132 130253915 208406264 260507830 521015660 1042031320