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1220301132 = 223690714723
BaseRepresentation
bin100100010111100…
…0101000101001100
310011001012201110020
41020233011011030
54444344114012
6321031142140
742145250151
oct11057050514
93131181406
101220301132
11576912336
122a0814950
13165a8199b
14b80d6228
15721eaa8c
hex48bc514c

1220301132 has 24 divisors (see below), whose sum is σ = 2847974976. Its totient is φ = 406680528.

The previous prime is 1220301127. The next prime is 1220301149. The reversal of 1220301132 is 2311030221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75523 + ... + 90245.

It is an arithmetic number, because the mean of its divisors is an integer number (118665624).

Almost surely, 21220301132 is an apocalyptic number.

1220301132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220301132 is an abundant number, since it is smaller than the sum of its proper divisors (1627673844).

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

1220301132 is a wasteful number, since it uses less digits than its factorization.

1220301132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21637 (or 21635 counting only the distinct ones).

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

The square root of 1220301132 is about 34932.8088192175. The cubic root of 1220301132 is about 1068.6176378058.

Adding to 1220301132 its reverse (2311030221), we get a palindrome (3531331353).

The spelling of 1220301132 in words is "one billion, two hundred twenty million, three hundred one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 6907 13814 14723 20721 27628 29446 41442 44169 58892 82884 88338 176676 101691761 203383522 305075283 406767044 610150566 1220301132