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16154730420 = 22351794116831
BaseRepresentation
bin11110000101110010…
…11001111110110100
31112200211222100000220
433002321121332310
5231041102333140
611231003534340
71111220641263
oct170271317664
945624870026
1016154730420
11693aa19084
12316a22a3b0
1316a5b502aa
14ad372c5da
156483abbd0
hex3c2e59fb4

16154730420 has 96 divisors (see below), whose sum is σ = 47947769856. Its totient is φ = 4049971200.

The previous prime is 16154730419. The next prime is 16154730433. The reversal of 16154730420 is 2403745161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 951405 + ... + 968235.

It is an arithmetic number, because the mean of its divisors is an integer number (499455936).

Almost surely, 216154730420 is an apocalyptic number.

16154730420 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 16154730420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23973884928).

16154730420 is an abundant number, since it is smaller than the sum of its proper divisors (31793039436).

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

16154730420 is a wasteful number, since it uses less digits than its factorization.

16154730420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17801 (or 17799 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

It can be divided in two parts, 16 and 154730420, that added together give a triangular number (154730436 = T17591).

The spelling of 16154730420 in words is "sixteen billion, one hundred fifty-four million, seven hundred thirty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 941 1020 1882 2823 3764 4705 5646 9410 11292 14115 15997 16831 18820 28230 31994 33662 47991 50493 56460 63988 67324 79985 84155 95982 100986 159970 168310 191964 201972 239955 252465 286127 319940 336620 479910 504930 572254 858381 959820 1009860 1144508 1430635 1716762 2861270 3433524 4291905 5722540 8583810 15837971 17167620 31675942 47513913 63351884 79189855 95027826 158379710 190055652 237569565 269245507 316759420 475139130 538491014 807736521 950278260 1076982028 1346227535 1615473042 2692455070 3230946084 4038682605 5384910140 8077365210 16154730420