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23354656872 = 23323791274217
BaseRepresentation
bin10101110000000010…
…111100100001101000
32020021121220111100120
4111300002330201220
5340312243004442
614421243203240
71454515210431
oct256002744150
966247814316
1023354656872
1199a5105418
124639516520
1322826b5bc1
1411b7a4c488
1591a5184ec
hex5700bc868

23354656872 has 128 divisors (see below), whose sum is σ = 62196940800. Its totient is φ = 7292533248.

The previous prime is 23354656867. The next prime is 23354656879. The reversal of 23354656872 is 27865645332.

It is not an unprimeable number, because it can be changed into a prime (23354656879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5536108 + ... + 5540324.

It is an arithmetic number, because the mean of its divisors is an integer number (485913600).

Almost surely, 223354656872 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 23354656872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31098470400).

23354656872 is an abundant number, since it is smaller than the sum of its proper divisors (38842283928).

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

23354656872 is a wasteful number, since it uses less digits than its factorization.

23354656872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455 (or 4451 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 51.

The spelling of 23354656872 in words is "twenty-three billion, three hundred fifty-four million, six hundred fifty-six thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 23 24 46 69 79 92 127 138 158 184 237 254 276 316 381 474 508 552 632 762 948 1016 1524 1817 1896 2921 3048 3634 4217 5451 5842 7268 8434 8763 10033 10902 11684 12651 14536 16868 17526 20066 21804 23368 25302 30099 33736 35052 40132 43608 50604 60198 70104 80264 96991 101208 120396 193982 230759 240792 290973 333143 387964 461518 535559 581946 666286 692277 775928 923036 999429 1071118 1163892 1332572 1384554 1606677 1846072 1998858 2142236 2327784 2665144 2769108 3213354 3997716 4284472 5538216 6426708 7662289 7995432 12317857 12853416 15324578 22986867 24635714 30649156 36953571 42309161 45973734 49271428 61298312 73907142 84618322 91947468 98542856 126927483 147814284 169236644 183894936 253854966 295628568 338473288 507709932 973110703 1015419864 1946221406 2919332109 3892442812 5838664218 7784885624 11677328436 23354656872