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1042352031 = 37671814093
BaseRepresentation
bin111110001000010…
…000011110011111
32200122100222011210
4332020100132133
54113320231111
6251233115503
734554563130
oct7610203637
92618328153
101042352031
11495420566
122510b8b93
13137c48466
149c613c87
156179a0a6
hex3e21079f

1042352031 has 32 divisors (see below), whose sum is σ = 1621355008. Its totient is φ = 583355520.

The previous prime is 1042352023. The next prime is 1042352039. The reversal of 1042352031 is 1302532401.

It is an interprime number because it is at equal distance from previous prime (1042352023) and next prime (1042352039).

It is not a de Polignac number, because 1042352031 - 23 = 1042352023 is a prime.

It is a super-2 number, since 2×10423520312 = 2172995513059649922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1042351989 and 1042352007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042352039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 252621 + ... + 256713.

It is an arithmetic number, because the mean of its divisors is an integer number (50667344).

Almost surely, 21042352031 is an apocalyptic number.

1042352031 is a deficient number, since it is larger than the sum of its proper divisors (579002977).

1042352031 is a wasteful number, since it uses less digits than its factorization.

1042352031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4351.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1042352031 is about 32285.4770911009. The cubic root of 1042352031 is about 1013.9226051515.

Adding to 1042352031 its reverse (1302532401), we get a palindrome (2344884432).

The spelling of 1042352031 in words is "one billion, forty-two million, three hundred fifty-two thousand, thirty-one".

Divisors: 1 3 7 21 67 181 201 469 543 1267 1407 3801 4093 12127 12279 28651 36381 84889 85953 254667 274231 740833 822693 1919617 2222499 5185831 5758851 15557493 49635811 148907433 347450677 1042352031