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211023032100 = 22352703410107
BaseRepresentation
bin1100010010000111110…
…0111110111100100100
3202011200120001201211120
43010201330332330210
511424133344011400
6240535335533540
721150230114556
oct3044174767444
9664616051746
10211023032100
1181549000391
1234a9322a2b0
1316b8cc4c08a
14a2dc0694d6
155751062ca0
hex3121f3ef24

211023032100 has 36 divisors (see below), whose sum is σ = 610559973744. Its totient is φ = 56272808480.

The previous prime is 211023032071. The next prime is 211023032107. The reversal of 211023032100 is 1230320112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211023032100.

It is not an unprimeable number, because it can be changed into a prime (211023032107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 351704754 + ... + 351705353.

Almost surely, 2211023032100 is an apocalyptic number.

211023032100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211023032100 is an abundant number, since it is smaller than the sum of its proper divisors (399536941644).

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

211023032100 is a wasteful number, since it uses less digits than its factorization.

211023032100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703410124 (or 703410117 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 211023032100 its reverse (1230320112), we get a palindrome (212253352212).

The spelling of 211023032100 in words is "two hundred eleven billion, twenty-three million, thirty-two thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 703410107 1406820214 2110230321 2813640428 3517050535 4220460642 7034101070 8440921284 10551151605 14068202140 17585252675 21102303210 35170505350 42204606420 52755758025 70341010700 105511516050 211023032100