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18700095700 = 225211134193121
BaseRepresentation
bin10001011010100111…
…001101000011010100
31210021020112021210001
4101122213031003110
5301244211030300
612331331541044
71231256122306
oct213247150324
953236467701
1018700095700
117a26797750
12375a75a784
1319c02a43b0
14c957cb976
15746a9916a
hex45a9cd0d4

18700095700 has 144 divisors (see below), whose sum is σ = 47802565440. Its totient is φ = 6259968000.

The previous prime is 18700095691. The next prime is 18700095703. The reversal of 18700095700 is 759000781.

It is a self number, because there is not a number n which added to its sum of digits gives 18700095700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18700095703) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5990140 + ... + 5993260.

It is an arithmetic number, because the mean of its divisors is an integer number (331962260).

Almost surely, 218700095700 is an apocalyptic number.

18700095700 is a gapful number since it is divisible by the number (10) 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 18700095700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23901282720).

18700095700 is an abundant number, since it is smaller than the sum of its proper divisors (29102469740).

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

18700095700 is a wasteful number, since it uses less digits than its factorization.

18700095700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578 (or 3571 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 18700095700 in words is "eighteen billion, seven hundred million, ninety-five thousand, seven hundred".

Divisors: 1 2 4 5 10 11 13 20 22 25 26 44 50 52 55 65 100 110 130 143 220 260 275 286 325 419 550 572 650 715 838 1100 1300 1430 1676 2095 2860 3121 3575 4190 4609 5447 6242 7150 8380 9218 10475 10894 12484 14300 15605 18436 20950 21788 23045 27235 31210 34331 40573 41900 46090 54470 59917 62420 68662 78025 81146 92180 108940 115225 119834 136175 137324 156050 162292 171655 202865 230450 239668 272350 299585 312100 343310 405730 446303 460900 544700 599170 686620 811460 858275 892606 1014325 1198340 1307699 1497925 1716550 1785212 2028650 2231515 2615398 2995850 3433100 4057300 4463030 5230796 5991700 6538495 8926060 11157575 13076990 14384689 17000087 22315150 26153980 28769378 32692475 34000174 44630300 57538756 65384950 68000348 71923445 85000435 130769900 143846890 170000870 187000957 287693780 340001740 359617225 374001914 425002175 719234450 748003828 850004350 935004785 1438468900 1700008700 1870009570 3740019140 4675023925 9350047850 18700095700