Search a number
-
+
887872020 = 223577692749
BaseRepresentation
bin110100111010111…
…101101000010100
32021212200120102220
4310322331220110
53304243401040
6224034102340
731000534110
oct6472755024
92255616386
10887872020
114161a9432
1220941a9b0
13111c3b379
1485cc0740
1552e332d0
hex34ebda14

887872020 has 96 divisors (see below), whose sum is σ = 2845920000. Its totient is φ = 202604544.

The previous prime is 887872001. The next prime is 887872043. The reversal of 887872020 is 20278788.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321606 + ... + 324354.

It is an arithmetic number, because the mean of its divisors is an integer number (29645000).

Almost surely, 2887872020 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 887872020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422960000).

887872020 is an abundant number, since it is smaller than the sum of its proper divisors (1958047980).

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

887872020 is a wasteful number, since it uses less digits than its factorization.

887872020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 887872020 is about 29797.1814103281. The cubic root of 887872020 is about 961.1329289587.

The spelling of 887872020 in words is "eight hundred eighty-seven million, eight hundred seventy-two thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 769 1538 2307 2749 3076 3845 4614 5383 5498 7690 8247 9228 10766 10996 11535 13745 15380 16149 16494 19243 21532 23070 26915 27490 32298 32988 38486 41235 46140 53830 54980 57729 64596 76972 80745 82470 96215 107660 115458 161490 164940 192430 230916 288645 322980 384860 577290 1154580 2113981 4227962 6341943 8455924 10569905 12683886 14797867 21139810 25367772 29595734 31709715 42279620 44393601 59191468 63419430 73989335 88787202 126838860 147978670 177574404 221968005 295957340 443936010 887872020