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1209630084 = 2231321136749
BaseRepresentation
bin100100000011001…
…0111110110000100
310010022010120112020
41020012113312010
54434131130314
6320010323140
741655454215
oct11006276604
93108116466
101209630084
11570893a93
122991294b0
131637b6860
14b691940c
15712ddda9
hex48197d84

1209630084 has 48 divisors (see below), whose sum is σ = 3054072000. Its totient is φ = 370419840.

The previous prime is 1209630031. The next prime is 1209630091. The reversal of 1209630084 is 4800369021.

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 15 ways as a sum of consecutive naturals, for example, 14542 + ... + 51290.

It is an arithmetic number, because the mean of its divisors is an integer number (63626500).

Almost surely, 21209630084 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1209630084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527036000).

1209630084 is an abundant number, since it is smaller than the sum of its proper divisors (1844441916).

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

1209630084 is a wasteful number, since it uses less digits than its factorization.

1209630084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36980 (or 36978 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 1209630084 is about 34779.7366867548. The cubic root of 1209630084 is about 1065.4936352533.

The spelling of 1209630084 in words is "one billion, two hundred nine million, six hundred thirty thousand, eighty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 211 422 633 844 1266 2532 2743 5486 8229 10972 16458 32916 36749 73498 110247 146996 220494 440988 477737 955474 1433211 1910948 2866422 5732844 7754039 15508078 23262117 31016156 46524234 93048468 100802507 201605014 302407521 403210028 604815042 1209630084