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19412291584 = 212723112
BaseRepresentation
bin10010000101000100…
…000001000000000000
31212002212122120212101
4102011010001000000
5304224021312314
612530132440144
71255024520200
oct220504010000
955085576771
1019412291584
118261806a94
123919179054
131aa49c398a
14d2221c400
1578937a174
hex485101000

19412291584 has 117 divisors (see below), whose sum is σ = 45303446271. Its totient is φ = 8292802560.

The previous prime is 19412291579. The next prime is 19412291593. The reversal of 19412291584 is 48519221491.

The square root of 19412291584 is 139328.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

Its product of digits (207360) is a multiple of the sum of its prime divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 62418789 + ... + 62419099.

Almost surely, 219412291584 is an apocalyptic number.

19412291584 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

19412291584 is the 139328-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19412291584

19412291584 is an abundant number, since it is smaller than the sum of its proper divisors (25891154687).

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

19412291584 is an frugal number, since it uses more digits than its factorization.

19412291584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 320 counting only the distinct ones).

The product of its digits is 207360, while the sum is 46.

The spelling of 19412291584 in words is "nineteen billion, four hundred twelve million, two hundred ninety-one thousand, five hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 49 56 64 98 112 128 196 224 256 311 392 448 512 622 784 896 1024 1244 1568 1792 2048 2177 2488 3136 3584 4096 4354 4976 6272 7168 8708 9952 12544 14336 15239 17416 19904 25088 28672 30478 34832 39808 50176 60956 69664 79616 96721 100352 121912 139328 159232 193442 200704 243824 278656 318464 386884 487648 557312 636928 677047 773768 975296 1114624 1273856 1354094 1547536 1950592 2229248 2708188 3095072 3901184 4458496 4739329 5416376 6190144 7802368 8916992 9478658 10832752 12380288 15604736 18957316 21665504 24760576 31209472 37914632 43331008 49521152 62418944 75829264 86662016 99042304 151658528 173324032 198084608 303317056 346648064 396169216 606634112 693296128 1213268224 1386592256 2426536448 2773184512 4853072896 9706145792 19412291584