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1031050040 = 23525776251
BaseRepresentation
bin111101011101001…
…001001100111000
32122212002202202112
4331131021030320
54102422100130
6250150551452
734356531536
oct7535111470
92585082675
101031050040
1148a001179
12249368588
131357bc0a7
149ad11156
15607b6495
hex3d749338

1031050040 has 16 divisors (see below), whose sum is σ = 2319862680. Its totient is φ = 412420000.

The previous prime is 1031049989. The next prime is 1031050057. The reversal of 1031050040 is 400501301.

It is a junction number, because it is equal to n+sod(n) for n = 1031049997 and 1031050024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12888086 + ... + 12888165.

Almost surely, 21031050040 is an apocalyptic number.

1031050040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031050040 is an abundant number, since it is smaller than the sum of its proper divisors (1288812640).

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

1031050040 is a wasteful number, since it uses less digits than its factorization.

1031050040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25776262 (or 25776258 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 1031050040 is about 32109.9679227495. The cubic root of 1031050040 is about 1010.2447010271.

Adding to 1031050040 its reverse (400501301), we get a palindrome (1431551341).

The spelling of 1031050040 in words is "one billion, thirty-one million, fifty thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 25776251 51552502 103105004 128881255 206210008 257762510 515525020 1031050040