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1102031989 = 3141867059
BaseRepresentation
bin100000110101111…
…1010110001110101
32211210200000200121
41001223322301311
54224110010424
6301204211541
736211055152
oct10153726165
92753600617
101102031989
11516082a43
12269099bb1
13147412846
14a650b229
1566b37ee4
hex41afac75

1102031989 has 8 divisors (see below), whose sum is σ = 1165328640. Its totient is φ = 1040469600.

The previous prime is 1102031981. The next prime is 1102032007. The reversal of 1102031989 is 9891302011.

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

It is a cyclic number.

It is not a de Polignac number, because 1102031989 - 23 = 1102031981 is a prime.

It is a super-2 number, since 2×11020319892 = 2428949009558592242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102031981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432259 + ... + 434800.

It is an arithmetic number, because the mean of its divisors is an integer number (145666080).

Almost surely, 21102031989 is an apocalyptic number.

It is an amenable number.

1102031989 is a deficient number, since it is larger than the sum of its proper divisors (63296651).

1102031989 is an equidigital number, since it uses as much as digits as its factorization.

1102031989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867131.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1102031989 is about 33196.8671564050. The cubic root of 1102031989 is about 1032.9153553256.

The spelling of 1102031989 in words is "one billion, one hundred two million, thirty-one thousand, nine hundred eighty-nine".

Divisors: 1 31 41 1271 867059 26878829 35549419 1102031989