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1212132030 = 235155326017
BaseRepresentation
bin100100000111111…
…1010101010111110
310010110211200112220
41020033322222332
54440301211110
6320140110210
742015644424
oct11017725276
93113750486
101212132030
1157224280a
12299b35366
131641815b5
14b6dab114
1571635370
hex483faabe

1212132030 has 32 divisors (see below), whose sum is σ = 2911101984. Its totient is φ = 323014656.

The previous prime is 1212131989. The next prime is 1212132043. The reversal of 1212132030 is 302312121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33582 + ... + 59598.

It is an arithmetic number, because the mean of its divisors is an integer number (90971937).

Almost surely, 21212132030 is an apocalyptic number.

1212132030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212132030 is an abundant number, since it is smaller than the sum of its proper divisors (1698969954).

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

1212132030 is a wasteful number, since it uses less digits than its factorization.

1212132030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27580.

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

The square root of 1212132030 is about 34815.6865507489. The cubic root of 1212132030 is about 1066.2277361812.

Adding to 1212132030 its reverse (302312121), we get a palindrome (1514444151).

The spelling of 1212132030 in words is "one billion, two hundred twelve million, one hundred thirty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 1553 3106 4659 7765 9318 15530 23295 26017 46590 52034 78051 130085 156102 260170 390255 780510 40404401 80808802 121213203 202022005 242426406 404044010 606066015 1212132030