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2789429472 = 253261831913
BaseRepresentation
bin1010011001000011…
…0101000011100000
321012101210200212200
42212100311003200
521203043220342
61140443053200
7126060521304
oct24620650340
97171720780
102789429472
111201618715
1265a211200
13355b98aab
141c6671d04
15114d4c94c
hexa64350e0

2789429472 has 144 divisors (see below), whose sum is σ = 8163883728. Its totient is φ = 903075840.

The previous prime is 2789429471. The next prime is 2789429473. The reversal of 2789429472 is 2749249872.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2789429471) and next prime (2789429473).

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789429471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1457188 + ... + 1459100.

It is an arithmetic number, because the mean of its divisors is an integer number (56693637).

Almost surely, 22789429472 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 2789429472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4081941864).

2789429472 is an abundant number, since it is smaller than the sum of its proper divisors (5374454256).

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

2789429472 is a wasteful number, since it uses less digits than its factorization.

2789429472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073 (or 2062 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 2789429472 is about 52815.0496733649. The cubic root of 2789429472 is about 1407.6838509790.

The spelling of 2789429472 in words is "two billion, seven hundred eighty-nine million, four hundred twenty-nine thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 72 83 96 122 144 166 183 244 249 288 332 366 488 498 549 664 732 747 976 996 1098 1328 1464 1494 1913 1952 1992 2196 2656 2928 2988 3826 3984 4392 5063 5739 5856 5976 7652 7968 8784 10126 11478 11952 15189 15304 17217 17568 20252 22956 23904 30378 30608 34434 40504 45567 45912 60756 61216 68868 81008 91134 91824 116693 121512 137736 158779 162016 182268 183648 233386 243024 275472 317558 350079 364536 466772 476337 486048 550944 635116 700158 729072 933544 952674 1050237 1270232 1400316 1429011 1458144 1867088 1905348 2100474 2540464 2800632 2858022 3734176 3810696 4200948 5080928 5601264 5716044 7621392 8401896 9685519 11202528 11432088 15242784 16803792 19371038 22864176 29056557 33607584 38742076 45728352 58113114 77484152 87169671 116226228 154968304 174339342 232452456 309936608 348678684 464904912 697357368 929809824 1394714736 2789429472