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1200102102 = 23322224113
BaseRepresentation
bin100011110001000…
…0001101011010110
310002122012111121000
41013202001223112
54424211231402
6315030204130
741511461643
oct10742015326
93078174530
101200102102
11566476521
12295ab3646
1316182bab4
14b5558dca
157055ac1c
hex47881ad6

1200102102 has 16 divisors (see below), whose sum is σ = 2666893680. Its totient is φ = 400034016.

The previous prime is 1200102037. The next prime is 1200102107. The reversal of 1200102102 is 2012010021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200102107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11112003 + ... + 11112110.

It is an arithmetic number, because the mean of its divisors is an integer number (166680855).

Almost surely, 21200102102 is an apocalyptic number.

1200102102 is an abundant number, since it is smaller than the sum of its proper divisors (1466791578).

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

1200102102 is a wasteful number, since it uses less digits than its factorization.

1200102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224124 (or 22224118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1200102102 is about 34642.4898354607. The cubic root of 1200102102 is about 1062.6887070960.

Adding to 1200102102 its reverse (2012010021), we get a palindrome (3212112123).

The spelling of 1200102102 in words is "one billion, two hundred million, one hundred two thousand, one hundred two".

Divisors: 1 2 3 6 9 18 27 54 22224113 44448226 66672339 133344678 200017017 400034034 600051051 1200102102