Search a number
-
+
19673080608 = 253973895431
BaseRepresentation
bin10010010100100110…
…110110001100100000
31212210001101001011010
4102110212312030200
5310242302034413
613012050220520
71264342266066
oct222446661440
955701331133
1019673080608
118385a39705
123990584740
131b16a430cc
14d48b06036
157a21e0dc3
hex4949b6320

19673080608 has 96 divisors (see below), whose sum is σ = 52317982080. Its totient is φ = 6472212480.

The previous prime is 19673080571. The next prime is 19673080627. The reversal of 19673080608 is 80608037691.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 3619653 + ... + 3625083.

It is an arithmetic number, because the mean of its divisors is an integer number (544978980).

Almost surely, 219673080608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19673080608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26158991040).

19673080608 is an abundant number, since it is smaller than the sum of its proper divisors (32644901472).

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

19673080608 is a wasteful number, since it uses less digits than its factorization.

19673080608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5930 (or 5922 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 19673080608 in words is "nineteen billion, six hundred seventy-three million, eighty thousand, six hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 97 194 291 388 389 582 776 778 1164 1167 1552 1556 2328 2334 3104 3112 4656 4668 5431 6224 9312 9336 10862 12448 16293 18672 21724 32586 37344 37733 43448 65172 75466 86896 113199 130344 150932 173792 226398 260688 301864 452796 521376 526807 603728 905592 1053614 1207456 1580421 1811184 2107228 2112659 3160842 3622368 4214456 4225318 6321684 6337977 8428912 8450636 12643368 12675954 16857824 16901272 25286736 25351908 33802544 50573472 50703816 67605088 101407632 202815264 204927923 409855846 614783769 819711692 1229567538 1639423384 2459135076 3278846768 4918270152 6557693536 9836540304 19673080608