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1004221031 = 11877910399
BaseRepresentation
bin111011110110110…
…011001001100111
32120222121201021112
4323312303021213
54024040033111
6243351535235
733612511052
oct7366631147
92528551245
101004221031
11475947140
1224038a51b
13130087538
1497529a99
155d266e8b
hex3bdb3267

1004221031 has 8 divisors (see below), whose sum is σ = 1095744000. Its totient is φ = 912736440.

The previous prime is 1004221013. The next prime is 1004221073. The reversal of 1004221031 is 1301224001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1004221031 - 214 = 1004204647 is a prime.

It is a super-2 number, since 2×10042210312 = 2016919758205405922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1004220997 and 1004221015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004221081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91370 + ... + 101768.

It is an arithmetic number, because the mean of its divisors is an integer number (136968000).

Almost surely, 21004221031 is an apocalyptic number.

1004221031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1004221031 is a deficient number, since it is larger than the sum of its proper divisors (91522969).

1004221031 is a wasteful number, since it uses less digits than its factorization.

1004221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19189.

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

The square root of 1004221031 is about 31689.4466818214. The cubic root of 1004221031 is about 1001.4050352846.

Adding to 1004221031 its reverse (1301224001), we get a palindrome (2305445032).

The spelling of 1004221031 in words is "one billion, four million, two hundred twenty-one thousand, thirty-one".

Divisors: 1 11 8779 10399 96569 114389 91292821 1004221031