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3087421986 = 23111719251577
BaseRepresentation
bin1011100000000110…
…0101001000100010
321222011112021202110
42320001211020202
522310340000421
61230210100150
7136336440165
oct27001451042
97864467673
103087421986
111344850920
12721b7a656
133a2842c1c
14214081adc
151310b1a76
hexb8065222

3087421986 has 128 divisors (see below), whose sum is σ = 7550807040. Its totient is φ = 829440000.

The previous prime is 3087421933. The next prime is 3087421993. The reversal of 3087421986 is 6891247803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5350530 + ... + 5351106.

It is an arithmetic number, because the mean of its divisors is an integer number (58990680).

Almost surely, 23087421986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3087421986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3775403520).

3087421986 is an abundant number, since it is smaller than the sum of its proper divisors (4463385054).

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

3087421986 is a wasteful number, since it uses less digits than its factorization.

3087421986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 3087421986 is about 55564.5749196374. The cubic root of 3087421986 is about 1456.1250197689.

The spelling of 3087421986 in words is "three billion, eighty-seven million, four hundred twenty-one thousand, nine hundred eighty-six".

Divisors: 1 2 3 6 11 17 19 22 33 34 38 51 57 66 102 114 187 209 251 323 374 418 502 561 577 627 646 753 969 1122 1154 1254 1506 1731 1938 2761 3462 3553 4267 4769 5522 6347 7106 8283 8534 9538 9809 10659 10963 12694 12801 14307 16566 19041 19618 21318 21926 25602 28614 29427 32889 38082 46937 52459 58854 65778 81073 93874 104918 107899 120593 140811 144827 157377 162146 186371 215798 241186 243219 281622 289654 314754 323697 361779 372742 434481 486438 559113 647394 723558 868962 891803 1118226 1593097 1783606 2050081 2462059 2675409 2751713 3186194 4100162 4779291 4924118 5350818 5503426 6150243 7386177 8255139 9558582 12300486 14772354 16510278 27082649 30268843 46779121 54165298 60537686 81247947 90806529 93558242 140337363 162495894 181613058 280674726 514570331 1029140662 1543710993 3087421986