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676789020 = 2237515473
BaseRepresentation
bin101000010101101…
…111101100011100
31202011111110000000
4220111233230130
52341224222040
6151053534300
722525416555
oct5025575434
91664443000
10676789020
11318036676
1216a7a4390
13aa2a359b
1465c5532c
153e63a130
hex2856fb1c

676789020 has 96 divisors (see below), whose sum is σ = 2131698240. Its totient is φ = 180465408.

The previous prime is 676788991. The next prime is 676789021. The reversal of 676789020 is 20987676.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676789021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36004 + ... + 51476.

It is an arithmetic number, because the mean of its divisors is an integer number (22205190).

Almost surely, 2676789020 is an apocalyptic number.

676789020 is a gapful number since it is divisible by the number (60) 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 676789020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1065849120).

676789020 is an abundant number, since it is smaller than the sum of its proper divisors (1454909220).

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

676789020 is a wasteful number, since it uses less digits than its factorization.

676789020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15503 (or 15483 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 676789020 is about 26015.1690365448. The cubic root of 676789020 is about 877.9796194611.

The spelling of 676789020 in words is "six hundred seventy-six million, seven hundred eighty-nine thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 135 162 180 243 270 324 405 486 540 729 810 972 1215 1458 1620 2187 2430 2916 3645 4374 4860 7290 8748 10935 14580 15473 21870 30946 43740 46419 61892 77365 92838 139257 154730 185676 232095 278514 309460 417771 464190 557028 696285 835542 928380 1253313 1392570 1671084 2088855 2506626 2785140 3759939 4177710 5013252 6266565 7519878 8355420 11279817 12533130 15039756 18799695 22559634 25066260 33839451 37599390 45119268 56399085 67678902 75198780 112798170 135357804 169197255 225596340 338394510 676789020