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103213032012 = 22325881487507
BaseRepresentation
bin110000000011111111…
…0011110001001001100
3100212102002112021120100
41200013332132021030
53142340014011022
6115225421251100
710312500203526
oct1400776361114
9325362467510
10103213032012
113a85507a662
1218005a03a90
13996b391c0c
144dd1a7ca16
152a4135e1ac
hex1807f9e24c

103213032012 has 36 divisors (see below), whose sum is σ = 260944507096. Its totient is φ = 34398423360.

The previous prime is 103213032007. The next prime is 103213032077. The reversal of 103213032012 is 210230312301.

103213032012 is a `hidden beast` number, since 10 + 321 + 3 + 0 + 320 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1032130320122 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32038 + ... + 455469.

Almost surely, 2103213032012 is an apocalyptic number.

103213032012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103213032012 is an abundant number, since it is smaller than the sum of its proper divisors (157731475084).

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

103213032012 is a wasteful number, since it uses less digits than its factorization.

103213032012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493398 (or 493393 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 103213032012 its reverse (210230312301), we get a palindrome (313443344313).

The spelling of 103213032012 in words is "one hundred three billion, two hundred thirteen million, thirty-two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 5881 11762 17643 23524 35286 52929 70572 105858 211716 487507 975014 1462521 1950028 2925042 4387563 5850084 8775126 17550252 2867028667 5734057334 8601086001 11468114668 17202172002 25803258003 34404344004 51606516006 103213032012