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19690833060 = 22325167661991
BaseRepresentation
bin10010010101101010…
…100100010010100100
31212211021202221221100
4102111222210102210
5310311323124220
613013522520100
71264646214363
oct222552442244
955737687840
1019690833060
118394a64358
123996506030
131b1a61a512
14d4b2077da
157a3a4ad90
hex495aa44a4

19690833060 has 144 divisors (see below), whose sum is σ = 60238144512. Its totient is φ = 5206291200.

The previous prime is 19690833037. The next prime is 19690833079. The reversal of 19690833060 is 6033809691.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 19690832997 and 19690833015.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19869165 + ... + 19870155.

It is an arithmetic number, because the mean of its divisors is an integer number (418320448).

Almost surely, 219690833060 is an apocalyptic number.

19690833060 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 19690833060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30119072256).

19690833060 is an abundant number, since it is smaller than the sum of its proper divisors (40547311452).

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

19690833060 is a wasteful number, since it uses less digits than its factorization.

19690833060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 19690833060 in words is "nineteen billion, six hundred ninety million, eight hundred thirty-three thousand, sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 167 180 334 501 661 668 835 991 1002 1322 1503 1670 1982 1983 2004 2505 2644 2973 3006 3305 3340 3964 3966 4955 5010 5946 5949 6012 6610 7515 7932 8919 9910 9915 10020 11892 11898 13220 14865 15030 17838 19820 19830 23796 29730 29745 30060 35676 39660 44595 59460 59490 89190 110387 118980 165497 178380 220774 330994 331161 441548 496491 551935 655051 661988 662322 827485 992982 993483 1103870 1310102 1324644 1489473 1654970 1655805 1965153 1985964 1986966 2207740 2482455 2620204 2978946 3275255 3309940 3311610 3930306 3973932 4964910 4967415 5895459 5957892 6550510 6623220 7447365 7860612 9825765 9929820 9934830 11790918 13101020 14894730 19651530 19869660 23581836 29477295 29789460 39303060 58954590 109393517 117909180 218787034 328180551 437574068 546967585 656361102 984541653 1093935170 1312722204 1640902755 1969083306 2187870340 3281805510 3938166612 4922708265 6563611020 9845416530 19690833060