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1040321212 = 227191955491
BaseRepresentation
bin111110000000100…
…000101010111100
32200111112210102021
4332000200222330
54112310234322
6251121405524
734531404310
oct7600405274
92614483367
101040321212
114942637a7
122504998a4
131376b6ca8
149c245b40
15614e84c7
hex3e020abc

1040321212 has 24 divisors (see below), whose sum is σ = 2190151040. Its totient is φ = 422385840.

The previous prime is 1040321209. The next prime is 1040321213. The reversal of 1040321212 is 2121230401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040321213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 977214 + ... + 978277.

Almost surely, 21040321212 is an apocalyptic number.

It is an amenable number.

1040321212 is an abundant number, since it is smaller than the sum of its proper divisors (1149829828).

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

1040321212 is a wasteful number, since it uses less digits than its factorization.

1040321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955521 (or 1955519 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1040321212 is about 32254.0107893577. The cubic root of 1040321212 is about 1013.2637004418.

Adding to 1040321212 its reverse (2121230401), we get a palindrome (3161551613).

The spelling of 1040321212 in words is "one billion, forty million, three hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 1955491 3910982 7821964 13688437 27376874 37154329 54753748 74308658 148617316 260080303 520160606 1040321212