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19230788480 = 275372693019
BaseRepresentation
bin10001111010001111…
…101000101110000000
31211122020010021102012
4101322033220232000
5303341040212410
612500130312052
71250362001501
oct217217505600
954566107365
1019230788480
118179308022
123888428628
131a762148a7
14d06092ba8
15778476605
hex47a3e8b80

19230788480 has 128 divisors (see below), whose sum is σ = 47407356000. Its totient is φ = 7454121984.

The previous prime is 19230788429. The next prime is 19230788491. The reversal of 19230788480 is 8488703291.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6368411 + ... + 6371429.

Almost surely, 219230788480 is an apocalyptic number.

19230788480 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 19230788480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23703678000).

19230788480 is an abundant number, since it is smaller than the sum of its proper divisors (28176567520).

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

19230788480 is a wasteful number, since it uses less digits than its factorization.

19230788480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344 (or 3332 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 19230788480 in words is "nineteen billion, two hundred thirty million, seven hundred eighty-eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 160 185 269 296 320 370 538 592 640 740 1076 1184 1345 1480 2152 2368 2690 2960 3019 4304 4736 5380 5920 6038 8608 9953 10760 11840 12076 15095 17216 19906 21520 23680 24152 30190 34432 39812 43040 48304 49765 60380 79624 86080 96608 99530 111703 120760 159248 172160 193216 199060 223406 241520 318496 386432 398120 446812 483040 558515 636992 796240 812111 893624 966080 1117030 1273984 1592480 1624222 1787248 1932160 2234060 3184960 3248444 3574496 4060555 4468120 6369920 6496888 7148992 8121110 8936240 12993776 14297984 16242220 17872480 25987552 30048107 32484440 35744960 51975104 60096214 64968880 71489920 103950208 120192428 129937760 150240535 240384856 259875520 300481070 480769712 519751040 600962140 961539424 1201924280 1923078848 2403848560 3846157696 4807697120 9615394240 19230788480