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23103154256 = 2472139723369
BaseRepresentation
bin10101100001000011…
…100010100001010000
32012122002122211121212
4111201003202201100
5334303401414011
614340300435252
71445342366600
oct254103424120
965562584555
1023103154256
119886145816
124589248b28
1322425685a0
1411924a0c00
159033d908b
hex5610e2850

23103154256 has 120 divisors (see below), whose sum is σ = 56656451880. Its totient is φ = 9045098496.

The previous prime is 23103154229. The next prime is 23103154313. The reversal of 23103154256 is 65245130132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 55056400 + 23048097856 = 7420^2 + 151816^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 976940 + ... + 1000308.

It is an arithmetic number, because the mean of its divisors is an integer number (472137099).

Almost surely, 223103154256 is an apocalyptic number.

23103154256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23103154256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28328225940).

23103154256 is an abundant number, since it is smaller than the sum of its proper divisors (33553297624).

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

23103154256 is a wasteful number, since it uses less digits than its factorization.

23103154256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23501 (or 23488 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 23103154256 its reverse (65245130132), we get a palindrome (88348284388).

The spelling of 23103154256 in words is "twenty-three billion, one hundred three million, one hundred fifty-four thousand, two hundred fifty-six".

Divisors: 1 2 4 7 8 13 14 16 26 28 49 52 56 91 97 98 104 112 182 194 196 208 364 388 392 637 679 728 776 784 1261 1274 1358 1456 1552 2522 2548 2716 4753 5044 5096 5432 8827 9506 10088 10192 10864 17654 19012 20176 23369 35308 38024 46738 61789 70616 76048 93476 123578 141232 163583 186952 247156 303797 327166 373904 494312 607594 654332 988624 1145081 1215188 1308664 2126579 2266793 2290162 2430376 2617328 4253158 4533586 4580324 4860752 8506316 9067172 9160648 14886053 15867551 17012632 18134344 18321296 29468309 29772106 31735102 34025264 36268688 58936618 59544212 63470204 111072857 117873236 119088424 126940408 206278163 222145714 235746472 238176848 253880816 412556326 444291428 471492944 825112652 888582856 1443947141 1650225304 1777165712 2887894282 3300450608 5775788564 11551577128 23103154256